CIVIL AND INTERIOR WORK FOR JALVIHAR AND VANVIHAR GUEST HOUSE AT INDIAN INSTITUTE OF TECHNOLOGY (BOMBAY), POWAI, MUMBAI-400 076. 1 UPENDRA NAYAK AND ASSOCIATES SIGNATURE & SEAL OF TENDERER Release021213 TENDER FOR IIT (BOMBAY) CIVIL AND INTERIOR WORK FOR JALVIHAR AND VANVIHAR GUEST HOUSE AT INDIAN INSTITUTE OF TECHNOLOGY (BOMBAY) POWAI, MUMBAI- 400076, INDIA PROJECT CONSULTANTS 1, SULBHA NIVAS, DILIP GUPTE MARG, MAHIM, MUMBAI – 400 016 TEL: 24458473 FAX: 24446223 Email: [email protected]www.unassociatesonline.com PLUMBING AND FIRE FIGHTING CONSULTANT Shop No. 1 & 2, Highrise Apartment, L.B.S Road, Kurla(W), Mumbai 400070. Phone: 26528515, 26506572, 26500590 Email: [email protected]
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Conditions-civil and furniture291113iitb.ac.in/deanpl/TenderNotice.pdfPLUMBING AND FIRE FI GHTING TECHNI CAL SPECIFICATION ISSUED BY MEPFP CONSULTANT 141 . CIVIL AND INTERIOR WORK
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CIVIL AND INTERIOR WORK FOR JALVIHAR AND VANVIHAR GUEST HOUSE AT INDIAN INSTITUTE OF TECHNOLOGY
(BOMBAY), POWAI, MUMBAI-400 076.
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UPENDRA NAYAK AND ASSOCIATES SIGNATURE & SEAL OF TENDERER
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TENDER FOR
IIT (BOMBAY)
CIVIL AND INTERIOR WORK FOR JALVIHAR AND VANVIHAR GUEST HOUSE
CIVIL AND INTERIOR WORK FOR JALVIHAR AND VANVIHAR GUEST HOUSE AT INDIAN INSTITUTE OF TECHNOLOGY
(BOMBAY), POWAI, MUMBAI-400 076.
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UPENDRA NAYAK AND ASSOCIATES SIGNATURE & SEAL OF TENDERER
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CONTRACT CONDITIONS
PART – I
CONTENTS
SR. NO. PARTICULARS PAGE NO.
1. NOTICE INVITING TENDER 3
2. ITEM RATE TENDER & CONTRACT FOR WORKS 6
3. GENERAL RULES & DIRECTIONS 8
4. CONDITIONS OF CONTRACT 11
5. CLAUSE OF CONTRACT 14
6. SAFETY CODE 63
7. MODEL RULES 68
8. CONTRACTOR’S LABOUR REGULATIONS 72
9. SPECIAL CONDITIONS OF CONTRACT 77
10. PROFORMA OF REGISTERS 86
11. PROFORMA FOR BANK GUARANTEE FOR EMD 102
12. FORM OF AGREEMENT 104
13. PROFORMA OF SCHEDULES 109
14. LIST OF DRAWINGS 111
15. PREAMBLE 113
16. LIST OF NOMINATED MATERIALS & SUPPLIERS 130
17. PLUMBING AND FIRE FIGHTING TECHNICAL SPECIFICATION ISSUED BY MEPFP
CONSULTANT 141
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NOTICE INVITING TENDER
1. Item rates tender in two parts consisting of part (1) Technical Bid and Part (2) Financial Bid are invited on
behalf of Indian Institute of Technology from approved and eligible contractors empanelled by Indian
Institute of Technology Bombay for the work of “Civil and Interiors Work for Jalvihar and Vanvihar
guest house at Indian Institute of Technology, Bombay, within IIT campus Powai, Mumbai –400
076.”
2. Tenderer shall quote his rates as per various terms and conditions of the said form which will form part of
the agreement. Agreement shall be drawn with the successful Tendered.
3. The time allowed for carrying out the work will be Six (6) calendar months (including monsoon) from the 7th
day after the date of Issue of ‘letter of acceptance’ with the phasing, if any, indicated in the tender
documents.
3.1 Site of work is available.
4. Tender documents consisting of plans, specifications, the schedule of quantities of the various classes of
work to be done and the set of terms & conditions of contract to be complied with by the contractor whose
tender may be accepted and other necessary documents can be collected, Design Cell, Office of Dean
(IPS), 3rd floor, Main Bldg, IIITB, Powai, Mumbai 40076 .The Tender will be uploaded on the 2nd of
December 2013 and available for download to contractors empanelled with IIT B for similar works.
5. Earnest Money Deposit:
Earnest Money Deposit of 1% on Tender Cost shall be in Treasury Challan / Deposit at Call receipt of a
scheduled bank / fixed deposit receipt of a scheduled bank/demand draft of a scheduled bank issued in
favour of Registrar, IIT Bombay. to be deposited in the shape prescribed above in a separate envelope.
6. Tenders, which should always be placed in sealed envelopes with separate envelope for each part, with the
name of work and due date and relevant part written on the envelopes, will be received by Design Cell,
Office of Dean (I.P.S.), 1st Floor, Main Building, IIT Bombay, Powai, Mumbai – 400 076 Upto 13:00 Hrs.
on 16th December 2013, every day except 2nd ,4th Saturday, all Sunday and public holidays and Part 1 &
Part 2 will be opened by him or his authorized representative in his office on the same day at 15:30 hrs.
Tenders submitted late shall not be considered.
Envelope No 1. It will contain:
a) Earnest Money Deposit – EMD (In separate envelope)
b) Duly signed Tender Document
c) Duly signed drawings
Envelope No 2: Price Bid. It will contain:
a) Bills of Quantities duly completed with prices as detailed.
7. The contractor shall be required to deposit an amount equal to 5% of the tendered value of the work as
performance guarantee in the form of an irrevocable bank guarantee bond of any scheduled bank or
State Bank of India in accordance with the form prescribed or in cash or in the form of Govt. security, fixed
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deposit receipt etc., as in the case of recovery of security deposit within prescribed number of days of the
issue of letter of acceptance. This period can be further extended by the engineer-in-charge up to a
maximum period of prescribed number of days on written request of the Contractor.
8. The description of the work which is not exhaustive is as follows:-
Proposed Civil and Interiors Work for Conference room, Dining room, Kitchen, store & mock up room for Jalvihar and Vanvihar guest house at Indian Institute of Technology, Bombay, Powai. Technical specifications for various trades / items are enclosed in Schedule of quantities (Bills of
Quantities) for various trades / items in detail
Copies of other drawings and documents pertaining to the works will be open for inspection by the
tenderers at the office of the above mentioned officer.
9. Pre Bid Meeting:
Tenderers are advised to attend Pre Bid Meeting at 11:00 Hrs. on 9th December 2013 at Dean (I.P.S.’s)
Conference Room, 1st Floor, Main Building, IIT Bombay, Powai, Mumbai 400 076 and inspect and examine
the site and its surroundings and satisfy themselves before submitting their tenders, the means of access to
the site, the accommodation they may require and in general shall themselves obtain all necessary
information as to risks, contingencies and other circumstances which may influence or affect their tender.
The tenderer shall be deemed to have full knowledge of the site whether he inspects it or not and no extra
charges consequent on any misunderstanding or otherwise shall be entertained on any grounds
whatsoever. The tenderer shall be responsible for arranging and maintaining at his cost all materials, tools
& plants, water, electricity access, facilities for workers and all other services required for executing the
work unless otherwise specifically provided for in the contract documents. Submission of a tender by a
tenderer implies that he has read this notice and all other contract documents and has made himself aware
of the scope and specifications of the work to be done and local conditions and other factors having a
bearing on the execution of the work.
10. The competent authority on behalf of Indian Institute of Technology Bombay does not bind itself to accept
the lowest or any other tender and reserves to itself the authority to reject any or all the tenders received
without the assignment of any reason. All tenders in which any of the prescribed condition is not fulfilled or
any condition including that of conditional rebate is put forth by the tenderer shall be summarily rejected.
11. Canvassing whether directly or indirectly, in connection with tenders is strictly prohibited and the tenders
submitted by the contractors who resort to canvassing will be liable to rejection.
12. The competent authority on behalf of Indian Institute of Technology Bombay reserves to himself the right of
accepting the whole or any part of the tender and the tenderer shall be bound to perform the same at the
rate quoted.
13. The tender for the works shall remain open for acceptance for a period of Three hundred and Sixty Five
(365) days from the date of opening of the Tenders. If any tenderer withdraws his tender before the said
period or issue of letter of acceptance which-ever is earlier, or makes any modifications in the terms and
conditions of the tender which are not acceptable to the department, then the IIT B shall, without prejudice
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to any other right or remedy, be at liberty to forfeit the 50% of said earnest money as aforesaid. Further the
tenderer shall not be allowed to participate in the re-tendering process of the work.
14. This Notice Inviting Tender shall form a part of the contract document. The successful tenderer / contractor,
on acceptance of his tender by the Accepting Authority, shall, within 15 days from the stipulated date of
start of the work, sign the contract consisting of:-
14.1 The notice inviting tender, all the documents including additional conditions, specifications and drawings, if
any, forms the tender as issued at the time of invitation of tender and acceptance thereof together with any
correspondence leading thereto.
15. For composite tenders
15.1 The tenderer must associate with agencies that are technically and financially capable for the other
components individually. The list of proposed agencies shall be submitted along with Organization detail,
annual turn over, list of work carried out / executing, list of technical persons employed and a valid license,
along with the tender.
15.2 It will be obligatory on the part of the tenderer to sign the tender document for all the components. (The
Schedule of Quantities, Conditions and Special Conditions, etc.)
Dean(IPS)
ON BEHALF OF
INDIAN INSTITUTE OF TECHNOLOGY,
BOMBAY
********
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ITEM RATE TENDER & CONTRACT FOR WORKS
(A) Tender for the work of :-
“Civil and Interiors Work for Jalvihar and Vanvihar guest house at Indian Institute of Technology,
Bombay, within IIT campus Powai, Mumbai – 400 076.”
i. To be submitted up to 13:00 hrs on 16th December 2013 to Design Cell ,Dean (I.P.S.), 3rd floor,
Main bldg., Indian Institute of Technology Bombay, Powai Mumbai 400 076 superscribing the name
of work and parts in a separate sealed covers.
ii. To be opened in presence of tenderers who may be present at 15:30 hrs on 16th December 2013
in the Design Cell, Dean (I.P.S.), 3rd floor, Indian Institute of Technology Bombay.
Issued to: ______________________________________________________________
(contractor)
Signature of officer issuing the documents ________________________________________________
i) The contractor shall provide all necessary superintendence during execution of the work and all
long thereafter as may be necessary for proper fulfilling of the obligations under the contract.
The contractor shall immediately after receiving letter of acceptance of the tender and before
commencement of the work, intimate in writing to the Engineer-in-Charge, the name(s),
qualifications, experience, age, address(s) and other particulars along with certificates, of the
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principal technical representative to be in charge of the work and other technical
representative(s) who will be supervising the work. Minimum requirement of such technical
representative(s) and their qualifications and experience shall not be lower than specified in
schedule F. the Engineer-in-Charge shall within 3 days of receipt of such communication
intimate in writing his approval or otherwise of such a representative(s) to the contractor. Any
such approval may at any time be withdrawn and in case of such withdrawal, the contractor
shall appoint another such representative(s) according to the provisions of this clause. Decision
of the tender accepting authority shall be final and binding on the contractor in this respect.
Such a principal technical representative and other technical representative(s) shall be
appointed by the contractor soon after receipt of the approval from Engineer-in-Charge and
shall be available at site before start of work.
All the provisions applicable to the principal technical representative under the Clause will also
be applicable to other technical representative(s) The principal technical representative and
other technical representative(s) shall be present at the site of work for supervision at all times
when any construction activity is in progress and also present himself/themselves, as required,
to the Engineer-in-Charge an/or his designated representative to take instructions. Instructions
given to the principal technical representative or other technical representative(s) shall be
deemed to have the same force as if these have been given to the contractor. The principal
technical representative and other technical representative(s) shall be actually available at site
fully during all stages of execution of work, during recording/checking/test checking of
measurement of works and whenever so required by the Engineer-in-Charge and shall also
note down instructions conveyed by the Engineer-in-Charge or his designated representative(s)
in the site order book and shall affix his/their signature in token of noting down the instruction
and in token of acceptance of measurement checked measurement/test checked
measurement. The representative(s) shall not look after any other work. Substitute, duly
approved by Engineer-in-Charge of the work in similar manner as aforesaid shall be provided in
event of absence of any of the representative(s) by more than two days.
If the Engineer-in-Charge, whose decision in this respect is final and binding on the contractor,
is conveyed that no such technical representative(s) is/are effectively appointed or is/are
effectively attending or fulfilling the provision of this clause, a recovery (non-refundable) shall be
effected from the contractor as specified Schedule “F” and the decision of the Engineer-in-
Charge as recorded in the site order book and measurement recorded checked/test checked in
Measurement Books shall be final and binding on the contractor. Further if the contractor fails to
appoint suitable technical Principal technical representative an/or other technical
representative(s) and if such appointed persons are not effectively present or are absent by
more than two days without duly approved substitute or do not discharge their responsibilities
satisfactorily, the engineer-in-Charge shall have full powers to suspend the execution of the
work until such date as suitable other technical representative(s) is are appointed and the
contractor shall be held responsible for the delay so caused to the work. The contractor shall
submit a certificate of employment of the technical representative(s) along with every on-
account bill / final and shall produce evidence if at any time so required by the Engineer-in-
Charge.
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ii) The contractor shall provide and employ on the site only such technical assistants as are skilled
and experienced in their respective fields and such foremen and supervisory staff as are
competent to give proper supervision to the work.
The contractor shall provide and employ skilled, semiskilled and unskilled labour as is
necessary for proper and timely execution of the work.
The Engineer-in-Charge shall be at liberty to object to and require the contractor to remove
from the works any person who in his opinion misconducts himself, or is incompetent or
negligent in the performance of his duties or whose employment is otherwise considered by the
Engineer-in-Charge to be undesirable. Such person shall not be employed again at works site
without the written permission of the Engineer-in-Charge and the persons so removed shall be
replaced as soon as possible by competent substitutes.
CLAUSE 37
Levy/Taxes payable by Contractor
i) The Rate quoted by contractor should be inclusive of all taxes.
ii) If pursuant to or under any law, notification or order any royalty, cess or the like becomes
payable by the IITB and does not any time become payable by the contractor to the State
Government, Local authorities in respect of any material used by the contractor in the works
then in such a case, it shall be lawful to the IITB and it will have the right and be entitled to
recover the amount paid in the circumstances as aforesaid from dues of the contractor.
CLAUSE 38
Conditions for reimbursement of levy/taxes if levied after receipt of tenders
i) All tendered rates shall be inclusive of all taxes and levies payable under respective statutes.
However, if any further tax or levy or cess is imposed by Statute, after the last stipulated date
for the receipt of tender including extensions if any and the contractor thereupon necessarily the
properly pays such taxes/levies, the contractor shall be reimbursed the amount so paid,
provided such payments, if any is not, in the opinion of Director IITB (whose decision shall be
final and binding on the contractor) attributable to delay in execution of work within the control
of the contractor.
ii) The contractor shall keep necessary books of accounts and other documents for the purposed
of this conditions as may be necessary and shall allow inspection of the same by a duly
authorized representative of the Engineer-in-Charge and further shall furnish such other
information/document as the Engineer-in-Charge may require from time to time.
iii) The contractor shall, within a period of 30 days of the imposition of any such further tax or levy
or cess, give a written notice thereof to the Engineer-in-Charge that the same is given pursuant
to this, together with all necessary information relating thereto.
CLAUSE 39
Termination of Contract on death of contractor
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Without prejudice to any of the rights or remedies under this contract if the contractor dies the EIC shall
have the option of terminating the contract without compensation to the contractor.
CLAUSE 40
If relative working in Institute then the contractor not allowed to tender – CLAUSE DELETED
CLAUSE 41
NO Gazetted Engineer to work as contractor within two years of retirement – CLAUSE DELETED
CLAUSE 42 - DELETED
CLAUSE 43
Compensation during warlike situations
The work (whether fully constructed or not) and all materials, machines, tools and plants, scaffolding,
temporary buildings and other thins connected therewith shall be at the risk of the contractor until the
work has been delivered to the Engineer-in-Charge and a certificate from him to that effect obtained. In
the event of the work or any materials properly brought to the site for incorporation in the work being
damaged or destroyed in consequence of hostilities or warlike operation, the contractor shall when
ordered (in writing) by the Engineer-in-Charge to remove any debris from the site, collect and properly
stack or remove in store all serviceable materials salvaged from the damaged work and shall be paid at
the contract rates in accordance with the provision of this agreement for the work of cleaning the site of
debris, stacking or removal of serviceable material and for reconstruction of all works ordered by the
Engineer-in-Charge, such payments being in addition to compensation upto the value of the work
originally executed before being damaged or destroyed and not paid for. In case of works damaged or
destroyed but not already measured and paid for, the compensation shall be assessed by the Engineer-
in-Charge upto Rs.5,000/- and by the IITB for a higher amount. The contractor shall be paid for the
damages/destruction suffered and for the restoring the material at the rate based on analysis of rates
tendered for in accordance with the provision of the contract. The certificate of the Engineer-in-Charge
regarding the quality of materials and the purpose for which they were collected shall be final and
binding o all parties to this contract.
Provided always that no compensation shall be payable for any loss in consequence of hostilities or
warlike operations (a) unless the contractor had taken all such precautions against air raid are as
deemed necessary by the A.R.P. Officers or the Engineer-in-Charge (b) for any material etc., not on the
site of the work or for any tools, plant, machinery, scaffolding, temporary building and other things not
intended for the work.
In the event of the contractor having to carry out reconstruction as aforesaid, he shall be allowed such
extension of time for its completion as is considered reasonable by IITB.
CLAUSE 44
Apprentices Act provisions to be complied with
The contractor shall comply with the provisions of the Apprentices Act, 1961 and the rules and orders
issued there under from time to time. If he falls to do so, his failure will be a breach of the contract and
Director, IITB may, in his discretion, cancel the contract. The contractor shall be also be liable for any
pecuniary liability arising on account of any violation by him of the provisions of the said Act.
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CLAUSE 45
Release of Security Deposit after Labour Clearance
Security Deposit of the work shall not be refunded till the contractor produces a clearance certificate from
the Labour Officer. As soon as the work is virtually complete the contractor shall apply for the clearance
certificate to the Labour Officer under intimation to the Engineer-in-charge, on receipt of the said
communication, shall write to the Labour Officer to intimate if any complaint is pending against the
contractor in respect of the work. If no complaint is pending, on record till after 3 months after completion
of the work and/or no communication is received from the Labour Officer to this effect till six months after
the date of completion, it will be deemed to have received the clearance certificate and the Security
Deposit will be released if otherwise due.
CLAUSE 46
ESIS, Provident Fund and Insurance
The Contractor shall be responsible to pay to the authority as applicable ESIS, PF within his quoted
rates. He shall be responsible to obtain certificate of payment for previous bills from respective authority
before next R.A Bill is released by the EIC.
The Contractor shall be responsible to take as specified insurances such as CAR policy, Third Party,
Workmen’s compensation, etc for the period of construction and maintenance as per contract.
CLAUSE 47
INSURANCES TO BE TAKEN BY THE CONTRACTOR & EMPLOYER TO BE INDEMNIFIED
(1) Insurance of Works etc
(a) The Contractor shall effect Contractor's all risk insurance policy (CAR policy) in the joint
names of the Employer and the Contractor, the name of the former being placed first in
the policy, covering the following :
(i) The works at the Contract price together with the materials for incorporation in the
Works at their replacement value.
(ii) All plants and equipments and other things brought to the site by the Contractor at
their replacement value.
(iii) Employer's building rented to the Contractor if the building or part thereof is used by
the Contractor for the purpose of storing or using materials of combustible nature, on
which the decision of the Engineer-in-Charge shall be final and binding.
(b) The insurance shall be against all losses or damages from whatever causes, other than
excepted risks, as defined in Clause 2 of Conditions of Contract, for which the
Contractor is responsible under the Contract. The insurance cover shall be for the
period of Contract and also for the period of maintenance, for loss or damage arising from
a cause prior to commencement of the period of maintenance, and for any loss or
damage, occasioned by the Contractor in the course of any operations carried out for the
purpose of complying with his obligations during Maintenance Period under Clause 17 of
Clauses of Contract.
(c) Such insurance shall be effected with an insurer and with terms approved by the
Employer. The Contractor shall, whenever required, produce the policy or policies and the
receipts for payment of the current premiums.
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(2) Third Party Insurance
(a) Before commencing the execution of the Works, the Contractor shall insure against the
liability for any material or physical damage, loss injury or death which may occur to any
property or life including that of the Employer or to any person, including any employee of
the Employer, by or arising out of the execution of the Works or in the carrying out of the
Contract. The sum insured will be for an amount specified in Schedule ‘F' (Refer Section
4). After each occurrence, Contractor shall pay additional premium necessary to make
insurance valid for four occurrences always The Insurance Policy should cover this
amount at all times till issue of Completion Certificate by the Engineer-in-Charge.
(b) Such insurance shall be effected with an insurer and its terms approved by the
Employer. The Contractor shall, whenever required, produce before Engineer the
policy or policies of insurance and the receipts of payment of the current premiums.
(3) Workmen's Insurance
(a) The Employer shall not be liable for any payment in respect of any damages or
compensation payable according to law in respect or in consequence of any accident or
injury or loss of life to any workman or other person in the employment of the Contractor or
any sub-Contractor, except an accident or injury resulting from any act or default of the
Employer, his agents or servants. The Contractor shall insure against such liability with an
insurer approved by the Employer for a sum as per established norms during the entire
period till completion of Period of Maintenance.
(4) Recovery from the Contractor
Without prejudice to the other rights of the Employer against the Contractor in respect of such
default, the Employer shall be entitled to deduct from any sums payable to the Contractor the
amount of any damages, compensation costs, charges and other expenses paid by the
Employer and which are payable by the Contractor under this clause.
(5) Shortfall in payment to Contractor by the Insurance Company
In all cases where the Contractor has taken any insurances, he shall not be entitled to
reimbursement by the Employer of any shortfall or deficiency in the amount payable by the
Contractor towards settlement of claims and that paid by the insurer in settlement of same
claim.
(6) Insurance by Sub-Contractors
Without prejudice to his liability under this clause the Contractor shall also cause all Sub-
Contractors to effect, for their respective portions of the works, similar policies of insurance in
accordance with the provisions of this clause and shall produce or cause to produce to the
Employer such policies. The Contractor shall not permit a Sub-Contractor to commence work
at the site unless the said insurance Policies are submitted. In the event of failure of the Sub-
Contractor to take out such a policy of Insurance before commencing the works at the site, the
Contractor shall be responsible for any claim or damage attributable to the said Sub-
Contractor.
(7) Period of Policies
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All the insurance covers mentioned above shall be kept alive during the complete period of the
Contract until the Contractor obtains a Maintenance Certificate from the Employer as explained
in Clause 17.
(8) Remedy on Contractor's Failure to Insure
If the Contractor shall fail to effect and keep in force the insurances referred to above, or any
other insurance which he may be required to effect under the terms of the Contract, then and
in any such case the Employer on advice of the Engineer-in-charge may effect and keep in
force any such insurance and pay such premium or premiums as may be necessary for that
purpose and from time to time deduct the amount so paid by the Employer as aforesaid from
any moneys due or which may become due to the Contractor, or recover the same as debt due
from the Contractor.
(9) Damage to Persons and Property - Employer to be indemnified
The Contractor shall indemnify the Employer against all losses and claims in respect of injuries
or damages to any person or material or physical damage to any property whatsoever which
may arise out of or in consequence of the execution and maintenance of the works and against
all claims, proceedings, damages, costs, charges and expenses whatsoever in respect of or in
relation thereto, except any compensation or damages for or with respect to:
a) The permanent use or occupation of land by the works or any part thereof.
b) The right of the Employer to execute the works or any part thereof on, over, under,
in or through any land.
c) Injuries or damage to persons or property caused by Excepted risks or resulting
from any act or neglect of the Employer, his agents, servants or other Contractors,
not being employed by the Contractor or for or in respect of any claims,
proceedings, damages, costs, charges and expenses in respect thereof or in
relation thereto. Where the injury or damage was contributed to by the
Contractor, his servants or agents, such part of the compensation as may be just
and equitable having regard to the extent of the responsibility of the Employer, his
servant or agent or other Contractors, for the damage or injury.
A copy of the Format for Indemnity Bond is at Annexure G.
CLAUSE 48 QUALITY ASSURANCE Submission of Quality Assurance Manual The Contractor shall on receipt of Letter of Acceptance, or as soon thereafter as possible, but not later
than one month, submit to the Engineer-in-Charge for his approval a Quality Assurance Manual for the
Contract works involved. The Manual should cover the following items as minimum:
i) Q.A. Plan for Basic Construction Materials indicating the details of tests to be undergone before use in works.
ii) Q.A. Plan for site activities indicating the details of tests to be conducted at the various stages of construction for various activities.
iii) In house/on site testing facilities to be developed for materials, site activities and calibration of equipments.
iv) Site documents to be maintained including records of results of tests for materials and workmanship, inventory record on availability of vital materials and their consumption vis-a-vis
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design requirements, site inspection records, quality audit record, safety audit record, site progress record, etc.
v) Check lists for source approval of materials etc., check lists for site activities and proforma for recording results of tests.
vi) Method statements for important construction activities. 49.2 Guidance in preparation
For guidance in the preparation of the Manual, the following printed Publications may be referred to : i) Quality Assurance Manual for Construction of Concrete Structures (Bridges & Flyovers) by
C.P.W.D. ii) Compilation of Quality Assurance Circulars of C.P.W.D.
CLAUSE 49 ECOLOGICAL BALANCE The Contractor shall maintain ecological balance by preventing deforestation, water pollution and defacing of natural landscape. The Contractor shall so conduct his construction operations as to prevent any avoidable destruction, scarring or defacing of natural surroundings in the vicinity of work. In respect of ecological balance, the Contractor shall observe the following instructions for which no extra payments will be made.
(a) Where destruction, scarring, damage or defacing may occur as a result of operations relating to Permanent or Temporary Works, the same shall be repaired, replanted or otherwise corrected at Contractor's expense. All work areas shall be smoothened and graded in a manner to conform to natural appearance of the landscape as directed by the Engineer.
(b) All trees and shrubbery, which are not specifically required to be cleared or removed for construction purposes, shall be preserved and shall be protected from any damage that may be caused by Contractor's construction operations and equipment or by their Employees/ Workers. The removal of trees or shrubs will be permitted only after prior approval of the Engineer. Special care shall be exercised where trees or shrubs are exposed to injuries by construction equipment, blasting, excavating, dumping, chemical damage or other operation and the Contractor shall adequately protect such trees by use of protective barriers or other methods approved by the Engineer. Trees shall not be used for anchorage. The Contractor shall be responsible for injuries to trees and shrubs caused by his operations and Employees/Workers. The terms "injury" shall include, without limitation, bruising, scarring, tearing and breaking of roots, trunks or branches. All injured trees and shrubs shall be restored as nearly practicable, without delay, to their original condition at Contractor's expense.
(c) Where trees have to be necessarily cut for progressing temporary or permanent works, the Contractor shall arrange for compensatory a forestation as may be required by Environmental Rules and Regulations.
(d) In the conduct of construction activities and operation of equipments, the Contractor shall utilize such practicable methods and devices as are reasonably available to control, prevent and otherwise minimize air/ noise pollution.
(e) Excessive emission of dust into the atmosphere will not be permitted during manufacture, handling and storage of concrete aggregates/fly ash/ earth/building materials and the Contractor shall use such methods and equipment as are necessary for collection and disposal or prevention of dust during these operations. The Contractor's method of storing and handling cement shall also include means of eliminating atmospheric discharge of dust. Equipment and vehicles that give objectionable emission of exhaust gases shall not be operated. Burning of materials resulting from cleaning of trees branches, combustible construction materials and rubbish may be permitted only when atmospheric conditions for burning are considered favourable.
(f) Special care must be exercised in ensuring that the labour housed in labour camp within the work site area do not indulge in any activity like drinking alcohol, taking drugs etc and other activities that may affect the ecological balance such as cutting of shrubs for fuel, creating open air nuisance etc.
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SAFETY CODE
1. Suitable scaffolds should be provided for workmen for all works that cannot safety be done from the
ground, or from solid construction except such short period work as can be done safely from ladders.
When a ladder is used, an extra mazdoor shall be engaged for holding the ladder and if the ladder is
used for carrying materials as well suitable footholds and hand-hold shall be provided on the ladder and
the ladder shall be given an inclination not steeper than ¼ to 1(¼ horizontal and 1 vertical.)
2. Scaffolding of staging more than 3.6m (12ft) above the ground or floor, swung or suspended from an
overhead support or erected with stationary support shall have a guard rail properly attached or bolted,
braced and otherwise secured at least 90 cm. (3ft.) high above the floor or platform of such scaffolding or
staging and extending along the entire length of the outside and ends there of with only such opening as
may be necessary for the delivery of materials. Such scaffolding or staging shall be so fastened as to
prevent it from swaying from the building or structure.
3. Working platforms, gangways and stairways should be so constructed that they should not sag unduly or
unequally, and if the height of the platform or the gangway or the stairway is more than 3.6m (12ft)
above ground level or floor level, they should be closely boarded, should have adequate width and
should be suitably fastened as described in (2) above.
4. Every opening in the floor of a building or in a working platform shall be provided with suitable means to
prevent the fail of person or materials by providing suitable fencing or railing whose minimum height shall
be 90 cm. (3ft.)
5. Safe means of access shall be provided to all working platforms and other working places. Every ladder
shall be securely fixed. No portable single ladder shall be over 9m. (30ft.) in length while the width
between side rails in rug ladder shall in no case be less than 29 cm (11 ½”) for ladder upto and including
3 m (10ft.) in length. For longer ladders, this width should be increased at least ¼” for each additional 30
cm. (1 foot) of length. Uniform the spacing of not more than 30 cm shall be kept. Adequate precautions
shall be taken to prevent danger from electrical equipment. No materials on any of the sites or work shall
be so stacked or placed as to cause danger or inconvenience to any person or the public. The contractor
shall provide all necessary fencing and lights to protect the public from accident and shall be bound to
bear the expenses of defense of every suit, action or other proceedings at law that may be brought by
any damages and cost which may be awarded in any such suit, action or proceedings to any such
person or which may, with the consent of the contractor, be paid to compensate any claim by such
person.
6. Excavation and Trenching- All trenches 1.2 m. (4ft.) or more in depth, shall at all times be supplied with
at least one ladder for each 30 m. (100ft.) in length of fraction thereof Ladder shall extend from bottom of
the trench to at least 90 cm. (3ft.) above the surface of the ground. The side of the trenches which are
1.5m. (5ft.) or more in depth shall be stepped back to give suitable slope or securely held by timber
bracing, so as to avoid the danger of sides collapsing. The excavated materials shall not be placed
within 1.5 m. (5ft.) of the edges of the trench or half of the depth of the trench whichever is more. Cutting
shall be done from top to bottom. Under no circumstances undermining or undercutting shall be done.
7. Demolition-Before any demolition work is commenced and also during the progress of the work,
i) All roads and open areas adjacent to the work site shall either be closed or suitably protected.
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ii) No electric cable or apparatus which is liable to be a source of danger or a cable or apparatus
used by the operator shall remain electrically charged.
iii) All practical steps shall be taken to prevent danger to persons employed from risk of fire or
explosion or flooding. No floor, roof or other part of the building shall be so overloaded with
debris or materials as to render it unsafe.
8. All necessary personal safety equipment as considered adequate by the Engineer-in- Charges should be
kept available for the use of the person employed on the site and maintained in a condition suitable for
immediate use, and the contractor should take adequate steps to ensure proper use of equipment by
those concerned: - The following safety equipment shall invariably be provided.
i) Workers employed on mixing asphaltic materials, cement and lime mortars shall be provided
with protective footwear and protective goggles.
ii) Those engaged in white washing and mixing or stacking of cement bags or any material which
is injurious to the eyes, shall be provided with protective goggles.
iii) Those engaged in wielding works shall be provided with welder’s protective eye-shields.
iv) Stone breaker shall be provided with protective goggles and protective clothing and seated at
sufficiency safe intervals.
v) When workers are employed in sewers and manholes, which are in active use, the contractors
shall ensure that the manhole covers are opened and ventilated atleast for an hour before the
workers are allowed to get into the manholes, and the manholes so opened shall be cordoned
off with suitable railing and provided with warning signals or boards to prevent accident to the
public. In addition, the contractor shall ensure that the following safety measure are adhered
to:-
a) Entry for workers into the line shall not be allowed except under supervision of the EIC or
any other higher officer.
b) At least 5 to 6 manholes upstream and downstream should be kept open for at least 2 to 3
hours before any man is allowed to enter into the manhole for working inside.
c) Before entry presence of Toxic gases should be tested by inserting wet lead acetate paper
which changes colour in the presence of such gases and gives indication of their
presence.
d) Presence of Oxygen should be verified by lowering a detector lamp into the manhole. In
case, no Oxygen is found inside the sewer line, workers should be sent only with Oxygen
kit.
e) Safety belt with rope should be provided to the workers. While working inside the
manholes such rope should be handled by two men standing outside to enable him to be
pulled out during emergency.
f) The area should be barricaded or cordoned of by suitable means to avoid mishaps of any
kind. Proper warning signs should be displayed for the safety of the public whenever
cleaning works are undertaken during night or day.
g) No smoking or open flames shall be allowed near the blocked manhole being cleaned.
h) The malba obtained on account of cleaning of blocked manholes and sewer line should
be immediately removed to avoid accidents on account of slippery nature of the malba.
i) Workers should not be allowed to work inside the manhole continuously. He should be
given rest intermittently. The Engineer-in-charge may decide the time up to which a worker
may be allowed to work continuously inside the manhole.
j) Gas masks with Oxygen Cylinder should be kept at site for use in emergency.
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k) Air-blowers should be used for flow of fresh air through the manholes. Whenever called for
portable air blowers are recommended for ventilating the manholes. The Motors for these
shall be vapour proof and of totally enclosed type. Non sparking gas engines also could be
used but they should be placed at least 2 meters away from the opening and on the
leeward side protected from wind so that they will not be source of friction on any
inflammable gas that might be present
l) The workers engaged for cleaning the manholes/sewers should be properly trained before
allowing to work in the manhole.
m) The workers shall be provided with Gumboots or non sparking shoes bump helmets and
gloves non sparking tools safety lights and gas masks and portable air blowers (when
necessary). They must be supplied with barrier cream for anointing th-9 limbs before
working inside the sewer lines.
n) Workmen descending a manhole shall try each ladder stop or rung carefully before putting
his full weight on it to guard against insecure fastening due to corrosion of the rung fixed to
manhole well.
o) If a man has received a physical injury, he should brought out of the sewer immediately
and adequate medical aid should be provided to him.
p) The extents to which these precautions are to be taken depend on individual situation but
the decision of the Engineer-in-Charge regarding the steps to be taken in this regard in an
individual case will be final.
vi) The contractor shall not employ men and women below the age of 18 years on the work of
painting with products containing lead in any from. Wherever men above the age of 18 are
employed on the work of lead painting, the following precaution should be taken:-
a) No paint containing lead or lead products shall be used except in the form of paste or
ready-made paint.
b) Suitable face masks should be supplied for use by the workers when paint is applied in the
form of spray or a surface having lead paint is dry rubbed and scraped.
c) Overalls shall be supplied by the contractors to the workmen and adequate facilities shall
be provided to enable the working painters to wash during and on the cessation of work.
9. An additional clause (viii)(i) of, Central Public Works Department Safety Code (iv) the Contractor shall
not employ women and men below the age of 18 on the work of painting with product containing lead in
any form, wherever men above the age of 18 are employed on the work of lead painting, the following
principles must be observed for such use:
i) White lead, sulphate of lead or product containing these pigment, shall not be used in painting
operation except in the form of pastes or paint ready for use.
ii) Measures shall be taken, wherever required in order to prevent danger arising out of from the
application of paint in the form of spray.
iii) Measures shall be taken, wherever practicable, to prevent danger arising out of from dust
caused by dry rubbing down and scraping.
iv) Adequate facilities shall be provided to enable working painters to wash during and cessation of
work.
v) Overall shall be worn by working painters during the whole of working period.
vi) Suitable arrangement shall be made to prevent clothing put off during working hours being
spoiled by painting materials.
vii) Cases of lead poisoning and suspected lead poisoning shall be notified and shall be
subsequently verified by medical man appointed by competent authority of IITB.
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viii) IITB may require, when necessary medical examination of workers.
ix) Instructions with regard to special hygienic precautions to be taken in the painting trade shall be
distributed to working painters.
10. All scaffolds, ladders and other safety devices mentioned or described herein shall be maintained in
safe condition and no scaffold, ladder or equipment shall be altered or removed while it is in use,
Adequate washing facilities should be provided at or near places of work.
11. These safety provisions should be brought to the notice of all concerned by display on a notice board at
a prominent place at work spot. The person responsible for compliance of the safety code shall be
named therein by the contractor.
12. To ensure effective enforcement of the rules and regulations relating to safety precautions the
arrangements made by the contractor shall be open to inspection by the Labour Officer or Engineer-in-
Charge of the department or their representatives.
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MODEL RULES
FOR THE PROTECTION OF HEALTH AND SANITARY ARRANGEMENTS FOR
WORKERS EMPLOYED BY CONTRACTORS
1. APPLICATION
These rules shall apply to all buildings and construction works in charge of IITB in which twenty or more
workers are ordinarily employed or are proposed to be employed in any day during the period during
which the contract work is in progress.
2. DEFINITION
Work place means a place where twenty or more workers are ordinarily employed in connection with
construction work on any day during the period during which the contracts work in progress.
3. FIRST-AID FACILITIES
i) At every work place there shall be provided and maintained, so as to be easily accessible
during working hours, first-aid boxes at the rate of not less than one box for 150 contract labour
or part thereof ordinarily employed.
ii) The first-aid box shall be distinctly marked with a red cross on white back ground and shall
contain the following equipment:-
a) For work places in which the number of contract labour employed does not exceed 50-
Each first-aid box shall contain the following equipments:-
1. 6 small sterilized dressings.
2. 3 medium size sterilized dressings.
3. 3 large size sterilized dressings.
4. 3 large sterilized burn dressings.
5. 1 (30 ml.) bottle containing a two per cent alcoholic solution of lodline.
6. 1 (30 ml.) bottle containing salvolatile having the dose and mode of administration
indicated on the label.
7. 1 snakebite lancet.
8. 1 (30 gms.) bottle of potassium permanganate crystals.
9. 1 pair scissors.
10. 1 copy of the first-aid leaflet issued by the Director General, Factory Advice Service
and Labour Institutes, Government of India.
11. 1 bottle containing 100 tables (each of 5 gms.) of aspirin.
12. Ointment for burns.
13. A bottle of suitable surgical antiseptic solution.
b) For work places in which the number of contract labour exceed 50.
Each first-aid box shall contain the following equipments.
1. 12 small sterilised dressings.
2. 6 medium size sterilised dressings.
3. 6 large size sterilized dressings.
4. 6 large size sterilized burn dressings.
5. 6 (15 gms.) packets sterilized cotton wool.
6. 1 (60 ml.) bottle containing a two per cent alcoholic solution iodine.
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7. 1 (60 ml.) bottle containing salvolatile having the dose and mode of administration
indicated on the label.
8. 1 roll of adhesive plaster.
9. 1 snake bite lancet
10. 1 (30 gms) bottle of potassium permanganate crystals.
11. 1 pair scissors.
12. 1 copy of the first-aid leaflet issued by the Director General Factory Advice Service
arid-Labour Institutes/ Government of India.
13. A bottle of containing I 00 tablets (each of 5 gms).
14. Ointment for burns.
15. A bottle of suitable surgical antiseptic solution
iii) Adequate arrangements shall be made for immediate recoupment of the equipment when
necessary.
iv) Nothing except the prescribed contents shall be kept in the First-aid box.
v) The first-aid box shall be kept in charge of a responsible person who shall always be readily
available during the working hours of the work place.
vi) A person in charge of the First-aid box shall be a person trained in First-aid treatment, in the
work places where the number of contract labour employed is 150 or more
vii) In work places where the number of contract labour employed is 500 or more and hospital
facilities are not available within easy distance from the works First-aid posts shall be
established and run by a trained compounder. The compounder shall be on duty and shall be
available at all hours when the workers are at work.
viii) Where work places are situated in places which are not towns or cities, a suitable motor
transport shall be kept readily available to carry injured person or person suddenly taken ill to
the nearest hospital.
4. DRINKING WATER
i) In every place, there shall be provided and maintained at suitable places, easily accessible to
labour, a sufficient supply of cold water fit for drinking.
ii) Where drinking water is obtained from an international public water supply, each work place
shall be provided with storage where such drinking water shall be stored.
iii) Every water supply or storage shall be at a distance of not less than 50 feet from any latrine
drain or other source of pollution. Where water has to be drawn from an existing well which is
within such proximity of latrine, drain or any other source of pollution, the well shall be properly
chlorinated before water is drawn from it for drinking. All such wells shall be entirely closed in
and be provided with a trap door which shall be dust and waterproof.
iv) A reliable pump shall be fitted to each covered well, the trap door shall be kept locked and
opened only for cleaning or inspection which shall be done at least once a month.
5. WASHING FACILITIES
i) In every work place adequate and suitable facilities for washing shall be provided and
maintained for the use of contract labour employed therein.
ii) Separate and adequate cleaning facilities shall be provided for the use of male and female
workers.
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iii) Such facilities shall be conveniently accessible and shall be kept in clean and hygienic
condition.
6. LATRINES AND URINALS
i) Latrine shall be provided in every work place on the following scale namely:-
a) Where female are employed there shall be at least one latrine for every 25 females.
b) Where males are employed, there shall be at least one latrine for every 25 males.
Provided that where the number of males or females exceeds 100, it shall be sufficient if there
is one latrine for 25 males or females as the case may be upto the first 100, and one for every
50 thereafter.
ii) Every latrine shall be under cover and so partitioned off as to secure privacy, and shall be have
a proper door and fastenings.
iii) Construction of latrines, The inside walls shall be constructed of masonry or some suitable
heat-resisting nonabsorbent materials and shall be cement washed inside and outside at least
once a year, Latrines shall not be of a standard lower than borehole system.
iv)
a) Where workers of both sexes are employed, there shall be displayed outside each block
of latrine and urinal, a notice in language understood by the majority of the workers “For
Men only” or “For Women Only” as the case may be.
b) The notice shall also bear the figure of a man or of a woman, as the case may be.
v) There shall be at least one urinal for male workers upto 50 and one for female workers upto
fifty employed at a time, provided that where the number of male or female workmen, as the
case may be exceeds 500, it shall be sufficient if there is one urinal for every 50 males or
females upto the first 500 and one for every 100 or part thereafter.
vi)
a) The latrine and urinals shall be adequately lighted and shall be maintained in clean and
sanitary condition at all times.
b) Latrines and urinals other than those connected with a flush sewage system shall comply
with the requirement of the Public Health Authorities.
vii) Water shall be provided by means of tap or otherwise so as to be conveniently accessible in or
near the latrines and urinals.
viii) Disposal of excreta: - Unless otherwise arranged for by the local sanitary authority,
arrangements for proper disposal of excreta by incineration at the work place shall be made by
means of a suitable incineration. Alternately excreta may be disposed of by putting a layer of
night soil at bottom of a pucca tank prepared for the purpose and covering it with a 15 cm. layer
of waste or refuse and then covering it with a layer of earth for a fortnight (when it will turn to
manure).
ix) The contractor shall at own expense, carry out all instructions issued to him by the Engineer-in-
Charge to effect proper disposal of night soil and other conservancy work in respect of the
contractor’s workmen or employees on the site. The contractor shall be responsible for payment
of any charges which may be levied by Municipal or Cantonment Authority for execution of such
on his behalf.
7. PROVISION OF SHELTER DURING REST
At every place there shall be provided, free of cost, four suitable sheds, two for meals and the other two
for rest separately for the use of men and women labour. The height of each shelter shall not be less
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than 3 meters (10 ft) from the floor level to the lowest part of the roof. These shall be kept clean and the
space provided shall be on the basis of 0.6 sq.m (6 ft) per head.
Provided that the Engineer-in-Charge may permit subject to his satisfaction, a portion of the building
under construction or other alternative accommodation to be used for the purpose.
8. CANTEENS
i) In every work place where the work regarding the employment of contract labour is likely to
continue for six months and where in contract labour numbering one hundred or more are
ordinarily employed, an adequate canteen shall be provided by the contractor for the use of
such contract labour.
ii) The canteen shall be maintained by the contractor in an efficient manner.
iii) The canteen shall consist of at least a dining hall, kitchen, storeroom, pantry and washing
places separately for workers and utensils.
iv) The canteen shall be sufficiency lighted at all times when any person has access to it.
v) The premises of the canteen shall be maintained in a clean and sanitary condition.
vi) Waste water shall be carried away in suitable covered drains and shall not be allowed to
accumulate so as to cause a nuisance.
vii) Suitable arrangements shall be made for the collection and disposal of garbage.
9. ANTI-MALARIAL PRECAUTIONS
The contractor shall at his own expense, conform to all anti-malarial instructions given to him by the
Engineer-in-Charge including the filling up of any borrow pits which may have been dug by him.
10. The above rules shall ho incorporate in the contracts and in notices inviting tenders and shall from an
integral part of tie contracts.
11. AMENDMENTS
Institute may, from time to time, add to or amend those rules and issue directions-it may consider
necessary for the purpose of removing any difficulty which may arise in the administration thereof.
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CONTRACTOR’S LABOUR REGULATIONS
1. SHORT TITLE
These regulations may be called Contractors Labour Regulations.
2. DEFINITIONS
i) Workman means any person employed by IITB or its contractor directly or indirectly through a
subcontractor with or without the knowledge of the IITB to do any skilled, semiskilled or
unskilled manual, supervisory, technical or clerical work for hire or reward, whether the terms of
employment are expressed or implied but does not include any person:-
a) Who is employed mainly in a managerial or administrative capacity: or
b) Who, being employed in a supervisory capacity draws wages exceeding five hundred
rupees per mensem or exercises either by the nature of the duties attached to the office or
by reason of powers vested in him, functions mainly of managerial nature: or
c) Who is an outworker, that is to say, person to whom any article or materials are given out
by or on behalf of the principal employers to be made up cleaned, washed, altered,
ornamental finished, repaired adopted or otherwise processed for sale for the purpose of
the trade or business of the principal employers and the process is to be earned out either
in the home of the out worker or in some other premises, not being premises under the
control and management of the principal employer.
No person below the age of 14 years shall be employed to act as a workman.
ii) Fair Wages means wages whether for time or piece work fixed and notified under the
provisions of the Minimum Wages Act from time to time.
iii) Contractors shall include every person who undertakes to produce a given result other than a
mere supply of goods or articles of manufacture through contract labour or who supplies
contract labour for any work and includes a subcontractor.
iv) Wages shall have the same meaning as defined in the Payment of Wages Act.
3.
v) Normally working hours of an adult employee should not exceed 9 hours a day. The working
day shall be so arranged that inclusive of interval for rest, if any, it shall not spread over more
than 12 hours on any day.
vi) When an adult worker is made to work for more than 9 hours on any day or for more than 48
hours in any week, he shall be paid over time for the extra hours put in by him-at double the
ordinary rates of wages.
vii)
a) Every worker shall be given a weekly holiday normally on a Sunday in accordance with the
provisions of the Minimum Wages (Central) Rules 1960 as amended from time to time
irrespective of whether such worker is governed by the Minimum Wages Act or not.
b) Where the minimum wages prescribed by the Government under the Minimum Wages Act
are not inclusive of the wages for the weekly day of rest, the worker shall be entitled to
rest day wages at the rate applicable to the next preceding day, provided he has worked
under the same contractor for a continuous period of not less than 6 days.
c) Where a contractor is permitted by the Engineer-in-Charge to allow a worker to work on a
normal weekly holiday, he shall grant a substituted holiday to him for the whole day on one
of the five days immediately before or after the normal weekly holiday and pay wages to
such worker for the work performed on the normal weekly holiday at overtime rate.
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4. DISPLAY OF NOTICE REGARDING WAGES ETC.
The contractor shall before he commences his work on contract, display and correctly maintain and
continue to display and correctly maintain in a clear and legible condition in conspicuous places on the
work, notices in English and in the local Indian languages spoken by the majority of the workers giving
the minimum rates of wages fixed under Minimum Wages Act, the actual wages being paid, the hours of
work for which such wages are earned, wages periods, dates of payments of wages and other relevant
as per Appendix ‘III’
5. PAYMENT OF WAGES
i) The contractor shall fix wage periods in respect of which wages shall be payable.
ii) No wage period shall exceed one month.
iii) The wages of every person employed as contract labour in an establishment or by a contractor
where less than one thousand such persons are employed shall be paid before the expiry of
seventh day and in other cases before the expiry of tenth day after the last day of the wage
period in respect of which the wages are payable.
iv) Where the employment of any worker is terminated by or on behalf of the contractor the wages
earned by him shall be paid before the expiry of the second working day from the date on which
his employment is terminated.
v) All payment of wages shall be made on a working day at the work premises and during the
working time and on a date notified in advance and in case the work is completed before the
expiry of the wage period, final payment shall be made within 48 hours of the last working day.
vi) Wages due to every worker shall be paid to him direct or to other person authorized by him in
this behalf.
vii) All wages shall be paid in current coin or currency or in both.
viii) Wages shall be paid without any deductions of any kind except those specified by the Central
Government by general or special order in this behalf or permissible under the Payment of
Wages Act 1956.
ix) A notice showing the wages period and the place and time of disbursement of wages shall be
displayed at the place of work and a copy sent by the contractor to the Engineer-in-Charge
under acknowledgment.
x) It shall be the duty of the contractor to ensure the disbursement of wages in the presence of the
Junior Engineer or any other authorized representative of the Engineer-in-Charge who will be
required to be present at a place and time of disbursement of wages by the contractor to
workmen.
xi) The contractor shall obtain from the Junior Engineer or any other authorized representative of
the Engineer-in-Charge as the case may be, a certificate under his signature at end of the
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entries in the “Register of Wages” or the “Wage-cum-Muster Roll” as the case may be in the
following from:-
“Certified that the amount shown in column No__________________ has been paid to the
workman concerned in my presence on at _________________”
6. FINES AND DEDUCTIONS WHICH MAY BE MADE FROM WAGES
i) The wages of a worker shall be paid to him without any deduction of any kind except the
following :-
a) Fines
b) Deduction for absence from duty i.e. from the place or the places where by the terms of
his employment he required to work. The amount of deduction shall be in proportion to the
period for which he was absent.
c) Deduction for damage to or loss of goods expressly entrusted to the employed person for
custody, or for loss of money or any other deduction which he is required to account,
where such damage or loss is directly attributable to his neglect of default.
d) Deduction for recovery of advances or for adjustment of overpayment of wages, advances
granted shall be entered in a register.
e) Any other deduction which the Central Government may from time to time allow.
ii) No fines should be imposed on any worker save in respect of such acts and omissions on his
part as have been approved of by the Chief Labour Commissioner.
Note: - An approved list of Acts and Omissions for which fines can be imposed is
enclosed at Appendix-I
iii) No fines should be imposed on a worker and no deduction for damage or loss shall be made
from his wages until the worker has been given an opportunity of showing cause against such
fines or deductions.
iv) The total amount of fine which may be imposed in any one wage period on a worker shall not
exceed an amount equal to three paise in a rupee of the total wages, payable to him in respect
of that wage period.
v) No fine imposed on any worker shall be recovered from him by installment, or after the expiry of
sixty days from the date on which it was imposed.
vi) Every fine shall be deemed to have been imposed on the day of the act or omission in respect
of which it was imposed.
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7. LABOUR RECORDS
i) The contractor shall maintain a Register of persons employed on work on contract in Form
XIII of the CL (R&A) Central Rules 1971 (Appendix IV)
ii) The contractor shall maintain a Muster Roll register in register in respect of all workmen
employed by him on the work under Contract in Form XVI of the CL (R&A) Rules 1971
(Appendix V)
iii) The contractor shall maintain a Wage Register in respect of all workmen employed by him on
the work under contract in Form XVII of the CL (R& A) Rules 1971 (Appendix VI)
iv) Register of accident- The contractor shall maintain a register of accidents in such form as may
be convenient at the work place but the same shall include the following particulars:-
a) Full particulars of the labourers who met with accident.
b) Rate of Wages.
c) Sex
d) Age
e) Nature of accident and cause of accident.
f) Time and date of accident.
g) Date of time when admitted in Hospital.
h) Date of discharge from the Hospital
i) Period of treatment and result of treatment.
j) Percentage of loss of earning capacity and disability as assessed by Medical Officer.
k) Claim required to be paid under Workmen’s Compensation Act.
l) Date of payment of compensation.
m) Amount paid with details of the person to whom the same was paid.
n) Authority by whom the compensation was assessed.
o) Remarks.
v) The contractor shall maintain a Register of Fines in the Form XII of the CL (R&A) Rules 1971
(Appendix-XI).
The contractor shall display in a good condition and in a conspicuous place of work the approved
list of acts and omissions for which fines can be imposed (Appendix-X)
vi) The contractor shall maintain a Register of deductions for damage or loss in Form XX of the
CL (R&A) Rulers 1971 (Appendix-XI I)
vii) The contractor shall maintain a Register of Advances in Form XXIII of the CL (R&A) Rulers
1971 (Appendix-XIII)
viii) The contractor shall maintain a Register of Overtime in Form XXIII of the CL (R&A) Rulers
1971 (Appendix-XIV)
8. ATTENDANCE CARD-CUM-WAGE SLIP
i) The contractor shall issue an attendance car-cum-wage slip to each workman employed by him
in the specimen form at (Appendix – VII).
ii) The card shall be valid for each wage period.
iii) The contractor shall mark the attendance of each workman on the card twice each J day, once
at the commencement of the day and again after the rest interval, before he actually starts
work.
iv) The card shall remain in possession of the worker during the wage period under reference.
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v) The contractor shall complete the wage slip portion on the reverse of the card at least a day
prior to the disbursement of wages in respect of the wage period under reference.
vi) The contractor shall obtain the signature or thumb impression of the worker on the wage slip at
the time of disbursement of wages and retain the card with himself.
9. EMPLOYMENT CARD
The contractor shall issue an Employment Card in Form XIV of the CL (R&A) Central Rules 1971 to
each worker within three days of the employment of the worker (Appendix-VIII).
10. SERVICE CERTIFICATE
On termination of employment for any reason whatsoever the contractor shall issue to the workman
whose services have been terminated, a Service certificate in Form XV of the CL (R&A) Central Rules
1971 (Appendix-IX).
11. PRESERVATION OF LABOUR RECORDS
All records required to be maintained under Regulations Nos. 6 & 7 shall be preserved in original for a
period of three years from the date of last entries made in them and shall be made available for
inspections by the Engineer-in-Charge or Labour Officer or any other officers authorized by the Ministry
of Urban Development in this behalf.
12. POWER OF LABOUR OFFICER TO MAKE INVESTIGATIONS OR ENQUIRY
The Labour Officer or any person authorized by Central Government on their behalf shall have power to
make enquires with a view ascertaining and enforcing due and proper observance of Fair Wage
Clauses and Provisions of these Regulations. He shall investigate into any compliant regarding the
default made by the contractor or subcontractor in regard to such provision.
13. REPORT OF LABOUR OFFICER
The Labour Officer or other person authorized aforesaid shall submit a report of result of his
investigation or enquiry to the Engineer-in-Charge indicating the extent, if any, to which the default has
been committed with a note that necessary deductions from the contractor’ shall bill be made and the
wages and other dues be paid to the labourers concerned. In case an appeal is made by the contractor
under Clause 13 of these regulations, actual payment labourers will be made by the Engineer-in-
Charge after the Director, IITB has given his decision on such appeal.
i) The Engineer-in-Charge shall arrange payments to the labour concerned with 45 days from the
receipt of the report from the Labour Officer or the Director, IITB as the case may be.
14. APPEAL AGAINST THE DECISION OF LABOUR OFFICER
Any person aggrieved by the decision and recommendations of the Labour Officer or other person so
authorized may appeal against such decision to the Director, IITB concerned within 30 days from the
date of decision, forwarding simultaneously a copy of his appeal to the Engineer-in-Charge but subject
to such appeal, the decision of the Engineer-in-Charge shall be final and binding upon the contractor.
15. PROHIBITION REGARDING REPRESENTATION THROUGH LAWYER
i) A workman shall be entitled to be represented in any investigation or enquiry under these
regulations by : -
a) An officer of a registered trade union of which he is a member.
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b) An officer of a federation of trade unions to which the trade union referred to in clause (a)
is affiliated.
c) Where the employer is not a member of any registered trade union by an officer of a
registered trade union, connected with the industry in which the worker in employed or by
any other workman employed in the industry in which the worker is employed.
ii) An employer shall be entitled to be represented in any investigation or enquiry under these
regulations by : -
a) An officer of an association of employers of which he is a member.
b) An officer of a federation of associations of employers to which association referred to in
clause (a) is affiliated.
c) Where the employer is not a member of any association of employers, by an officer of
associations of employers connected with the industry in which the worker in employer is
engaged or by any other employer, engaged in the industry in which the employer is
engaged.
iii) No party shall be entitled to be represented by a legal practitioner in any investigation or
enquiry under these regulations.
16. INSPECTION OF BOOKS AND SLIPS
The contractor shall allow inspection of all the prescribed labour records to any of his workers or to his
agent at a convenient time and place after due notice is received or to the Labour Officer or any other
person by the Central Government on his behalf.
17. SUBMISSIONS OF RETURNS
The contractor shall submit periodicals returns as may be specified from time to time.
18. AMENDMENTS
The Central Government may from time to time add to or amend the regulations and on any question as
to the application/Interpretation or effect of those regulations the decision of the Director, IITB concerned
shall be final.
* * * * *
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SPECIAL CONDITIONS OF CONTRACT
1.0. DETAILS ABOUT SUBMISSION OF TENDER DOCUMENT
PART 1: TECHNICAL BID WHICH SHALL CONTAIN
a) Earnest Money Deposit (EMD) – in separate envelope.
b) The Covering letter giving undertaking that Tender Forms is duly completed, signed and sealed for
entering into agreement with terms and conditions for this contract and no deviations are proposed.
Name and address of establishment under which contract is carried on __________________________________________________________
Name and address of Principle Employer__________________________________________________________________________________
Sl. No.
Total period which employed
Nature of Work Done Rate of wages (With particulars of unit
in case of piece work) Remarks
From To
1 2 3 4 5 6
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REGISTER OF FINES
Name and address of contractor_________________________________________________________________________________________
Name and address of establishment in under which contract is carried on ________________________________________________________
Nature and location of work ____________________________________________________________________________________________
Name and address of Principle Employer__________________________________________________________________________________
Sl.
No.
Name of Workman Father’s /
Husband’s
name
Designat
ion
nature of
employm
ent
Act /
Omission
for which
fine
imposed
Date of
Offence
Whether
workman
showed
cause
against fine
Name person
in whose
presence
employee’s
explanation
was heard
Wage
period
and
wages
payable
Amount of
fine
imposed
Date on
which fine
realized
Remarks
1 2 3 4 5 6 7 8 9 10 11 12
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REGISTER OF DEDUCTION FOR DAMAGE OR LOSS
Name and address of contractor________________________________________________________________________________________
Name and address of establishment in under which contract is carried on _______________________________________________________
Nature and location of work ___________________________________________________________________________________________
Name and address of Principle Employer_________________________________________________________________________________
Sl.
No.
Name of workman Father’s/Hu
sband’s
name
Designation
nature of
employment
Particulars
of damage
or loss
Date of
damage
or loss
Whether
workman
showed
cause
against
deduction
Name person
in whose
presence
employee’s
explanation
Amount of
deduction
imposed
No. of
installments
Date of recovery Remarks
First
installm
ent
Last
installm
ent
1 2 3 4 5 6 7 8 9 10 11 12 13
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REGISTER OF ADVANCES
Name and address of contractor________________________________________________________________________________________
Name and address of establishment in under which contract is carried on _______________________________________________________
Nature and location of work ___________________________________________________________________________________________
Name and address of Principle Employer_________________________________________________________________________________
Sl. No. Name of workman Father’s /
Husband’s
name
Designation
nature of
employment
Wage
Period and
Wages
payable
Date and
amount
of
Advance
given
Purchased
for which
Advance
made
Number of
installments
by which
advance to
repaid
Date and
amount of
each
installment
repaid
Date on
which last
installment
was repaid
Remarks
1 2 3 4 5 6 7 8 9 10 11
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REGISTER OF OVERTIME
Name and address of contractor_________________________________________________________________________________________
Name and address of establishment in under which contract is carried on ________________________________________________________
Nature and location of work ____________________________________________________________________________________________
Name and address of Principle Employer__________________________________________________________________________________
Sl.
No.
Name of workman Father’s /
Husband’s
name
Sex Designation /
nature of
employment
Date which
on Overtime
worked
Total overtime
worked or
production in
case of piece
rated
Normal
rate of
wages
Overtime
rate of
wages
Overtime
earnings
Rate on
which
overtime
wages paid
Remarks
1 2 3 4 5 6 7 8 9 10 11 12
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FORM OF PERFORMANCE SECURITY (GUARANTEE)
BANK GUARANTEE BOND
1. In Consideration of Director IITB having offered to accept the terms and conditions of the proposed
agreement between _______________________________and
___________________________(herein after called “the said Contractor(S)”) for the work (hereinafter
called ‘’the said agreement”) having agreed to production of a irrevocable Bank Guarantee for
Rs.________________/- (Rupees ________________________ only) as a security / guarantee from
the contractor (S) for compliance of his obligations in accordance with the terms and conditions in the
said agreement.
2. We, __________________________ (hereinafter referred to as “ the Bank”) hereby undertake
(indicate the name of the bank)
to pay to the IITB an amount not exceeding Rs.________________/- (Rupees ___________________
only) on demand by the IITB the amount due and Payable under this guarantee without any demure,
merely on a demand from the IITB stating that the amount claimed as required to meet the recoveries
due or likely to be due from the said contractor (S). Any such demand made on the bank shall be
conclusive as regards the amount due and payable by the bank under this Guarantee. However, our
liability under this guarantee shall be restricted to an amount not exceeding Rs. (Rupees only).
3. We, the said bank further undertake – to pay IITB any money so demanded notwithstanding any dispute
or disputes raised by the contractors) in any suit or proceeding pending before any court or Tribunal
relating thereto. Our liability under this present being absolute and unequivocal, The payment so made
by us under this bond shall be a valid discharge of our liability for payment there under and the
Contractor (s) shall have no claim against us for making such payment.
4. We, ____________________________ further agree that the guarantee herein contained shall
(indicate the name of the bank)
remain in full force and effect during the period that would be taken for the performance of the said
agreement and that it shall continue to be enforceable till all the dues of the IITB under or by virtue of
the said agreement have been fully paid and its claims satisfied or discharged or till Engineer – in –
Charge on behalf of the Government certified that the terms and conditions of the said agreement have
been fully and properly carried out by the said agreement have been fully and properly carried out by
the said Contractor(s) and accordingly discharges this guarantee.
5. We, ________________________________________ further agree with IITB that the Institute
(indicate the name of the bank)
Shall have the fullest liberty without our consent and without affecting in any manner our obligation
hereunder to vary any of the terms and conditions of the said agreement or to extend time of
performance by the said Contractor (S) from time to time or to postpone for any time or from time to
time any of the powers exercisable by the institute against the said contractor (s) and to forbear or
enforce any of the terms and conditions relating to the said agreement and we shall not be relieved from
our liability by reason of any such variation, or extension being granted to the said Contractor(s) or for
any forbearance, act of omission on the part of the IITB or any indulgence by IITB to the said Contractor
(s) or by any such matter or thing whatsoever which under the law relating to sureties would, but for this
provision, have effect of so relieving us.
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6. This guarantee will not be discharged due to the change in the constitution of the Bank or the
Contractor(s).
7. We, ______________________________ lastly undertake not to revoke this guarantee except
(indicate the name of the bank)
with the previous consent of IITB in writing.
8. This guarantee shall be valid upto unless extended on demand by the Government. Notwithstanding
anything mentioned above, our liability against this guarantee is restricted to Rs. ____________
(Rupees _________________ only) and unless a claim in writing is lodged with us within six months of
the date of expiry or the extended date of expiry of this guarantee all liabilities under this guarantee shall
stand discharged.
Dated the _____________day of _____________ for _______________ (indicate the name of the
bank)
**************
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PROFORMA OF BANK GUARANTEE FOR EMD
(On Stamp Paper of Rs.100/-)
To,
WHEREAS, contractor___________________ (Name of Contractor) (hereinafter called “the contractor”) has
submitted his tender dated _____________ (date) for the construction of _____________ (name of work)
(hereinafter called “the tender”)
KNOW ALL PEOPLE by these presents that we ________________________ (name of bank) having our
registered office at _______________ (hereinafter called “the bank”) are bound unto _____________ (Name of
the employer) (hereinafter called “the employer”) in the sum of Rs. _____________ (Rs. In
words______________________) for which payment well and truly to be made to the said Employer the Bank
binds itself, his successors and assigns by these presents.
SEALED with the Common Seal of the said Bank this _____________ day of _________ 20_____
THE CONDITIONS of this obligation are:
1. If the tender opening the Contractor withdraws, his tender during the period of validity of tender (including
extended validity of tender) specified in the Form of Tender;
2. If the contractor having been notified of the acceptance of his tender by the Employer:
a) fails or refuses to execute the Form of Agreement in accordance with the Instructions to contractor, if
required; OR
b) fails or refuse to furnish the Performance Guarantee, in accordance with the provisions of tender
document and Instructions to contractor, OR
c) fails or refuse to start the work, in accordance with the provisions of the contract and Instructions to
contractor, OR
d) fails or refuse to submit fresh Bank Guarantee of an equal amount of this Bank Guarantee, against
Security Deposit after award of contract.
We undertake to pay to the Employer up to the above amount upon receipt of his first written demand, without
the Employer having to substantiates his demand, provided that in his demand the Employer will note that the
amount claimed by his due to him owing to the occurrence of one or any of the above conditions, specifying the
occurred condition or conditions.
This Guarantee will remain in force up to and including the *date _____________after the deadline for
submission of tender as such deadline is stated in the instructions to contractor or as it may be extended by
Employer, notice of which extension(s) to the Bank is hereby waived. Any demand in respect of this Guarantee
should reach the Bank not later than the above date.
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DATE ________________ SIGNATURE OF THE BANK
SEAL
WITNESS ____________________
(SIGNATURE, NAME & ADDRESS)
*Date to be worked out on the basis of validity of 6 months from last date of receipt of tender.
*****
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FORM OF AGREEMENT
ARTICLES OF AGREEMENT made this ____________ day of ________ Two Thousand
________________________________
BETWEEN
___________________________________________________ (herein after referred to as “the Employer” which
expression shall include its successors and assigns where the context so admits) of the one point.
AND
__________________________________________________ (herein after referred to as “the Contractor” which
expression shall include their heirs, executors, administrators and assigns where the context so admits) of the
other part.
WHEREAS
The Employer is desirous that certain Works should be executed, viz___________________________
______________________________________________________________, and has accepted Tender by the
Contractor for the execution completion and maintenance of such Works NOW THIS AGREEMENT
WITNESSETH as follows:-
1. In this Agreement words and expressions shall have the same meanings as are respectively assigned
to them in the Conditions of Contractor hereinafter referred to.
2. The following documents shall be deemed to form and be read and construed as part of this Agreement,
viz:-
(a) The said Tender
(b) The Drawings
(c) The Conditions of Contract (Volume – I)
(d) The Specifications (Volume – I)
(e) The Bills of Quantities (Volume – II)
(f) The Letter of Acceptance
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In consideration of the payments to be made by the Employer to the Contractor as hereinafter mentioned the
Contractor hereby covenants with the Employer to execute complete and maintain the Works in conformity in all
respects with the provisions of the Contract.
3. The Employer hereby covenants to pay the Contractor in consideration of the execution and
maintenance of the Works at the Contract Price at the time and in the manner prescribed by the
Contract.
4. The particulars referred to in the various clauses of the Conditions of Contract are as given in
Schedules A to F.
IN WITNESS whereof the parties hereto have caused of their respective Common Seals to be hereunto affixed
(or have hereunto set their respective hands and seals) the day and year first above written.
The Common Seal of____________________________
______________________________________________
____________ was hereunto affixed in the presence of:-
or
SIGNED SEALED AND DELIVERED by the said
______________________________________________
______________________________________________
in the presence of:-
*****
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PROFORMA OF SCHEDULES
(Operative Schedules to be supplied separately to each intending tenderer)
SCHEDULE ‘A’
Schedule of quantities - Parrt II
SCHEDULE ‘B’
Schedule of materials to be issued to the contractor.
S. No. Description of item Quantity Rates in figures &
words at which the
material will be charged
to the contractor.
Place of issue
1 2 3 4 5
1. a. Water for Construction
Purpose
- 1% of Contract price Refer Clause 32 :
Alternative Water
Arrangements
b. Water for Drinking
purpose
- One point at the site of
work.
Refer Clause 5.1 of
Special Conditions of
Contract.
2. Electricity - 1% of Contract price One point within site or
near site.
Refer Clause 5.2 of
Special Conditions of
Contract.
SCHEDULE ‘C’
Tools and plants to be hired to the contractor
S. No. Description Hire charges per day Place of issue
1 2 3 4
Nil
SCHEDULE ‘D’
Extra schedule for specific requirements / document for the work, if any.
Nil
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SCHEDULE ‘E’
Reference to General Conditions of Contract
Name of Work :Civil and Interior work for Jalvihar and Vanvihar guest house at Indian Institute of
Technology, Bombay, within IIT campus Powai, Mumbai – 400 076
Estimated cost of work : Rs. 150 Lakhs
i. Earnest Money : 1% of Quoted value
ii. Performance Guarantee : 5% of tendered value.
iii. Security Deposit : 5% of tendered value.
SCHEDULE ‘F’
General Rules & Direction : Officer inviting tender Dean (I.P.S) on behalf of Director IIT Bombay, Powai
Mumbai 400 076
Maximum percentage for quantity of items of work
beyond which rates are to be determined in accordance
with Clauses 12.2 & 12.3 See below
Definitions :
2(v) Engineer-in-Charge Representative of Dean I.P.S.
2(viii) Accepting Authority Director IITB
2(x) Percentage on cost of materials and
Labour to cover all overheads and profits. 15%
2(xi) Standard Schedule of rates based on estimates of IITB
2(xii) Department Dean Infrastructure, Planning & Support
Clause 1
i) Time allowed for submission of Performance Guarantee 7 days
from the date of issue of letter of acceptance
ii) Maximum allowable extension beyond 7 days
the period provided in (i) above in days
Clause 2 Authority for fixing compensation under clause 2 Director IITB Clause 2A Whether Clause 2A shall be applicable Yes / No Clause 5 Number of days from the date of issue of letter 7 days of acceptance for reckoning date of start
Mile stone(s) as per table given below:-
Time allowed for execution of work 4 (Four) months (including monsoon). Authority to decide:
(i) Extension of time Dean I.P.S. (ii) Rescheduling of mile stones Dean I.P.S. Clause 6, 6A
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Clause applicable – (6 or 6A) Clause 6A
Clause 7 Gross work to be done together with net payment Rs. 25 Lac / adjustment of advances for material collected, if any, since the last such payment for being eligible to interim payment
Clause 10A
List of testing equipments to be provided by the contarctor at site lab. NIL
1
Clause 10B (ii) Whether clause 10B (ii) shall be applicable Yes / No (Mobilisation advance Not Applicable Clause 10C Not applicable to this contract
Clause 10CA – Not applicable to this contract
Clause 10CC – Not applicable to this contract
Clause 11 Specification to be followed for Tender Specifications execution of work Clause 12 12.2 & 12.3 Deviation Limit beyond which
clauses 12.2 & 12.3 shall apply NIL
for building work
12.5 Deviation Limit beyond which
clauses 12.2 & 12.3 shall apply NIL
for foundation work
Clause 16 Competent Authority for deciding reduced rates Director IITB
Clause 17 Defect Liability Period 12 Months
Clause 18
List of mandatory machinery, tools & plants to be deployed by the contractor at site:-
nil
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Clause 36(i)
Requirement of Technical Representative(s) and recovery Rate
Sr.
No.
Minimum
Qualification of
Technical
Representative Dis
cipl
ine
Designation
(Principal
Technical /
Technical
representative
Minimum
Experience
Num
ber
Rate at which recovery shall be
made from the contractor in the
event of not fulfilling provision of
clause 36(i)
Figures Words
1 Interior Designer Degree holder with 15 yrs Exp
Civil Project Manager Min. 15 Yrs. in furniture
1 Rs. 40,000 per Month
Rupees Forty Thousand per month
2 BE / DCE (+ 5 years)
Civil & Elect. / Mech.
Site Engineer Site Experience
1 (1 each)
Rs. 20,000 per Month
Rupees Twenty Thousand per month
4 H.S. / ITI Civil & Elect. / Mech.
Site Supervisor Relevant – 10 Yrs. Experience in Bldgs.
1 Rs. 7,000 per Month
Rupees Seven Thousand per month
Assistant Engineers retired from Government services that are holding Diploma will be treated at par with
Graduate Engineers.
Clause 42 Not Applicable
i)
(a) Schedule / statement for determining theoretical quantity of cement & bitumen on the basis of as
specified in Part 1
ii) Variation permissible on theoretical quantities
(b) Cement for works with estimated cost put to 3% plus/minus
tender not more than Rs.5 Lakhs
for works with estimated cost put to tender 2% plus/minus
more than Rs.5 Lakhs.
(c) Steel Reinforcement and structural steel sections
for each diameter, section and category 2% plus/minus
(d) All other materials Nil
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RECOVERY RATES FOR QUANTITIES BEYOND PERMISSIBLE VARIATION
Not Applicable
SI. No Description of Item Rate in figures and word at which recovery shall be made from the
Contractor
Excess Beyond permissible variation Less use beyond the
permissible variation
1. Cement Not Applicable Rs. 300/ bag
2. Steel Reinforcement Rs. 40000 / MT
3. Structural Sections Rs. 42000/ MT
4. Bitumen issued free NA
5. Bitumen issued at stipulated fixed
price
NA
*****
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LIST OF DRAWINGS
Sr. No. Sheet no. Sheet name Remarks
A. Architectural drawings
1 A1 Guest House ground floor plan
2 A2 Guest House first floor plan
3 A3a Guest House Second floor plan
4 A3b Guest House Second floor plan
5 A4 Mock up plan of king size bedroom
(Jalvihar)
6 A5 Mock up plan of double bedroom
(Vanvihar)
7 A6 Ground floor section
8 A7 Ground floor flooring plan
9 A8 Ground floor toilet detail drawing
10 A9 Ground floor false ceiling drawing
12 A13 First floor section
13 A14 First floor flooring plan
14 A15 First floor false ceiling plan
16 A17 First floor toilet detailed drawing
17 A20 Mock up room section(Jalvihar)
18 A21 Mock up room flooring plan (Jalvihar)
19 A22 Mock up room bathroom detail drawing
(Jalvihar)
20 A27 Mock up room section (Vanvihar)
21 A28 Mock up room flooring plan (Vanvihar)
22 A29 Mock up room false ceiling plan
23 A30 Mock up room bathroom detail drawing
(Vanvihar)
B. Furniture Drawings
1 A10 Ground floor doors & windows schedule
2 A11 Conference room wall paneling drawing Only for ref. dim.
As per site
conditions
3 A12 Conference room tables detail drawing
4 A16 First floor doors & windows schedule
drawings
5 A18 Buffet counter & crokery unit detail
drawings
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6 A19 Used plate counter & dining table detail
drawings
7 A23 Mock up room door detail drawing(Jalvihar)
8 A24 Mock up room bed detail drawing (Jalvihar)
9 A25 Mock up room console desk detail drawing
10 A26 Mock up room wardrobe detail drawing
(Jalvihar)
11 A31 Mock up room bed detail drawing
(Vanvihar)
12 A32 Mock up room console desk detail drawing
(Vanvihar)
11 A33 Mock up room wardrobe detail drawing
(Vanvihar)
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PREAMBLE AND SPECIFICATIONS
The quantities given in this schedule of quantities are approximate and subject to variations without vitiating
the contract.
Pricing
The rate for each item of work shall, unless expressly stated otherwise, include the following (but not limited
to the list given below) for the completion of works in all respects as per conditions of Contract, technical
specifications, drawing etc.:
Rates are inclusive of all Taxes, Royalties, Transportation, Freights, Packing and forwarding charges
Insurance etc.
All requirements and expenses for completion of work as per Rules and Regulations of Local Bodies, State
Government and Central Government of India.
All materials, equipments, accessories, consumable, controls and instruments, tools, tackles, plants,
scaffolding/double scaffolding labour, maintenance, fixing, cleaning, making good hauling, hoisting etc.,
Waste on material and labour.
Loading, Unloading, handling/double handling, setting out protection from weather, temporary supports,
platforms etc., and the maintenance, of the same, dismantling of temporary works, disposal of debris and all
other labour necessary for the execution of works.
Testing the installation as often as necessary, Contractors to arrange for all special instruments and tools
required for such testing.
Painting of all equipment, pipes, supports etc., as per color codes to be decided for various systems.
Apportion of costs for general facilities to be used by the Contractor’s staff such as lifts, electricity,
telephones etc. during execution if such facilities are provided by other contractors and who arrange for such
facilities in the first instance.
Fees for testing the materials, equipment or overall installation by appropriate authorities.
Supervising Civil/ Masonry / Carpentry Works done by other agencies on behalf of the Institute for Interior
contractor.
All requirements of specification and drawings. Description of work given in the schedule of quantities is a
brief description and shall be read in conjunction with specifications and drawings.
Removal of POP covering and carting away all unwanted material including POP.
The rates quoted by the Tenderer will be deemed to be for the finished work complete in all respects with
accessories, fitting, mounting arrangements normally provided with such equipment and/or needed for
execution, completion, safe operation of equipment as required through they may not have been specifically
mentioned in technical specifications, drawings and/or schedule of equipment.
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All minor Masonry, Carpentry and Civil works such as cutting opening in Masonry Walls, Internal Partitions,
Chasing on walls, etc. and making good the same to match existing works shall be provided by the
contractor, Whenever asked for by the Architect/Consultant.
SCHEDULE OF QUANTITIES
All items of work contracted for shall be executed strictly in accordance with the description of the item in the
Schedule of Quantities, relevant drawings and specifications read in conjunction with the appropriate Indian
Standard specifications and conditions of the contract and established Engineering practices.
The rate for each item of work included in the schedule of quantities shall unless expressly stated otherwise
include cost of:
All materials, fixing materials, accessories sequence of operations, appliances, tools, plant equipment,
transport labour and incidentals required and completion of the work called for in the item and as per
specifications and drawings completely
Wastage on materials and labour
Loading transporting, unloading, handling as necessary, hoisting to all levels, and setting, fitting and fixing
the position, protecting, disposal of debris as directed and all other labour necessary and to fully complete
the job in accordance with contract documents, good practice and recognized principles of trade laid down in
codes of practice.
Liabilities, obligations and risks arising out of conditions of contract.
All requirements of specifications, whether such requirements are mentioned in the item or not shall be
provided for the specifications and drawings where available are to be read as complimentary to any part of
the schedule of quantities and any work called for in one shall be taken as required for all similar items.
In the event of conflict between Schedule of Quantities and other documents including the specifications the
most stringent among them shall apply and the interpretations of the consultants/owner shall be final and
binding.
The Contractor shall be paid for the actual quantity of work executed by him in accordance with the drawings
at the accepted rates.
This schedule shall be fully priced and the extensions and totals duly checked. The rates for all items shall
be filled in INK. The entries under amount column shall be rounded off to the nearest Rupee.
No alterations whatsoever is to be made either to the description of items in the Schedule of quantities or
specifications unless such alterations, is clarified in writing by the consultant/owner. Any such alterations,
notes or additions shall unless clarified in writing be disregarded when tender documents are considered.
Any observation on BOQ should be made in the letter accompanying technical bid for proper consideration
and on disfiguring or overwriting in the documents is permitted.
In event of an error occurring in the amount column of the schedule, as a result of wrong extension of unit
rate and quantity, the unit rate quoted by the Tenderer shall be regarded as firm and the extensions shall be
amended on the basis of rates.
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All errors in totaling in the amount column and in carrying forward totals shall be corrected.
Unless otherwise stated, all measurements shall be taken in accordance with Indian standard for building of
Measurements IS 1200 latest revision effective on the date of measurement for interior items as applicable.
Any errors in quantity of items from the contract schedule shall not vitiate this contract but shall be corrected
and deemed to be a variation by the Architect/Consultant/Owner.
DRAWINGS AND DATA
Within two weeks of placement of order/letter of intent contractor shall furnish the following data in triplicate
for approval by Architect/Consultant/Owner.
General arrangement drawing of the equipment on orders showing plan, elevations, and sectional views,
mounting details.
Bill of materials.
Descriptive catalogues, characteristic curves, duty point efficiency factor and technical particulars of all the
various equipments offered.
SPARE PARTS AND MAINTENANCE FOR MATERIALS SUPPLIED
Tenderer shall offer along with the bid, duly recommended by manufacturer set of spare parts required for a
period of 1 years continuous operation. Itemized unit prices with exact quantities recommended for these
spares shall be separately indicated for consideration of the Owner/Consultant.
DOCUMENTS MUTUALLY COMPLIMENTARY
The several documents forming the contract are to be read as mutually complementary to each other and in
case of ambiguities/ discrepancies, the same shall be explained and clarified by the Consultant/Owner to the
Contractor in what manner the work is expected to be carried out to meet the end requirements.
INSTRUCTIONS DURING EXECUTION
On the advice of the Owner, the consultants may issue further drawings and written instructions, details,
directions and explanations collectively referred to as “Site instruction” in regard to:
Variations for modification of the design, quality or quantity of works as addition or omission or substitution of
any works therein.
Any discrepancies in the drawings or between the schedule of quantities and/or specifications and/or
drawings.
Removal from the site any material brought by the contractor and substitution of any other materials
therefore.
The dismissal or removal from work of any person employed thereupon.
Removal/re-examination of any works executed in case of doubt of any nature.
Opening up for inspection of any work covered up without proper tests by the Architect/Consultant.
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Oversight on the part of the Architect/Consultant/his assistant to disapprove any defective work or material shall
not prejudice the Owner/Consultant, thereafter to disapprove such work or materials and to order pulling down,
replacement, removal breaking up or reconstruction.
The Contractor shall make his own arrangement for the engagement of all labour and shall be responsible for
regulating their service conditions, work conditions in conformity with all Acts, Regulations, Rules or order of
competent authority under relevant laws in force during the pendency of the contract.
Contractor shall indemnify the Owner from all claims relating to the workers/ staff/ sub-contractors, Salaries,
Wages, Overtime, Leave, Provident Fund, Medical facilities, gratuity, Bonus or any other claim as applicable and
stipulated in any statutory provisions, rules or order of competent authority.
All materials so far as procurable shall be of the reputed make in the category of manufacture and bear the
stamp of quality of the Bureau Standards wherever applicable. The contractor shall furnish documentary proof,
test certificates and guarantees as relevant to such materials from manufacturers, which shall match with the
date of procurement.
MASONRY
Rate shall include for provision of:
Work at all heights, depth and in all situations and to all shapes and profile and all necessary works like staging,
ladders, platforms, double staging etc. all are required for proper execution of works.
Hacking and roughening of concrete or other surfaces coming in contact with masonry for bondage, cutting
bricks/blocks, wastage etc.
Raking out joints to specified depth either for plaster or pointing or finishing the joints flushes as the work
proceeds, all as directed.
Bedding and pointing wall-plaster, lintels, sills etc. in or on walls, bedding and pointing doors, windows and like in
cement mortar.
Making openings for pipes, conduits, ducts etc. and closing the same after completion of such works and
finishing as directed.
Providing at exact locations and to exact sizes pre-designated openings.
Forming chases for edges for concrete floors or other units, for scaling in of waterproofing layers, etc.
Providing cement concrete blocks (1:2:4) at doorjambs where required to receive expansion bolts/holdfasts etc.
Building in holdfasts and or inserts, supplied by the engineer.
Keeping the work well wetted for 10 days.
Bricks/blocks to be wetted before use.
Bailing out, pumping out or otherwise removing all water, which may accumulate from all causes.
Sampling and testing of any other material during the course of work as and when directed.
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PLASTER Rates shall include for provision of:
Work at all levels, heights and to all situations and profiles.
Double scaffolding, working platforms etc.
A coat of neeru plaster soon after the curing period is over.
Work in narrow widths and small quantities unless special provision is made to the contrary.
Preparation to the surfaces by raking out joints in brick or by hacking the concrete surface and wetting the
surface before plastering wherever required.
Thickness of plaster exclusive of the thickness of key i.e. grooves and open joints in brickwork, stone work etc.
Chamfers of any width, internal and external rounded angles and chases and forming sharp and clean edges as
shown.
Curing, protection and cleaning of all surfaces.
Keeping all plastered surfaces well wetted for at least 7 days.
PAINTING AND POLISHING
The rates shall include for provision of:
Works at all heights and use of all scaffolding quantities, ladders, cradles etc. necessary for execution work and
for inspection.
Preparing surfaces to receive finishing coats, such as brushing to remove all extraneous materials and fungus
growth, if any, preparing, scraping, washing and rubbing etc.
Puttying, sand papering and dusting of surfaces in between coats where applicable.
Work on cornices, narrow bands and widths, recesses grooves etc.
Finishing to approved matt texture and/or stipple finish etc. complete as directed.
Spreading and removing, covering to doors window. Floors, fittings, ducts, pipes etc. to protect them from
splashes
Washing floors, cleaning glass, joinery, electrical fittings, ducts. Pipes etc. of drops and splashes and leaving
premises clean and tidy.
FLOORING, DADO, SKIRTING AND WALL FINISHES The rates shall include for provision of:
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Use and waste of all temporary fillets, side-forms, templates, moulds, straight edges etc.
Washing of coarse and fine aggregates, wherever required by the consultants.
Final preparation of the base, sub-grade or sub-floor including minor trimming of the base to remove slight
undulations if necessary.
Cleaning and watering the surfaces immediately before laying the floor.
Providing bedding layer of mortar as specified, in case of slabs, tiles etc. to correct levels of slopes as called for.
Cutting, rubbing and polishing surfaces and edges where applicable.
Rounding off corners, edges and junctions of floors with skirting or dado and also cutting recesses where
required to accommodate recessed skirting.
Forming rounded recess in floor where called for.
Providing grooves where shown on drawings.
Work in narrow widths, bands, cornices, and strips and to profiles shown at all heights, levels, and locations and
in small quantities, unless otherwise mentioned.
Curing, protecting and cleaning all finished surfaces as specified.
Work on any surface such as bricks, concrete, stone etc.
Providing grooves at the junction of plaster with other finishes as called for.
Scoring surfaces of plaster for key where the surface is not required to be finished fair.
All samples of finishing materials shall be got approved prior to use.
Keeping the work well wet for at least 7 days.
Cutting tiles/slabs to require size/shapes providing holes etc. before laying.
Hand polishing, machine polishing, cleaning tiles with acid.
All marble work e.g. flooring, cladding, skirting, dado etc. shall have white cement based mortar in bedding and
grouts.
All ceramic tiles shall be of 1st quality.
All stone flooring to be protected by POP covering with plastic base.
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CARPENTARY AND JOINERY
Rate shall include for provision of:
Unless otherwise specified, the quoted rates shall be for all joinery work with approved Indian Teakwood, Steam
beech wood free from all defects and kiln seasoned and preservatives treated and shall be got tested in
laboratory and approved before placing or applying primer coat. The rate shall also include for applying two coats
of Solignum paint to the face of frames in contact with masonry or concrete and the like.
The rate quoted shall include for fixing on masonry/RCC members and for 300 x 40 mm x 6 mm finished MS
holdfasts embedded in PCC (1:2:4) blocks of 230 x 150 mm size and of width to suit the thickness of masonry
wall or for anchor fasteners, coach screws etc. of adequate size for fixing to RCC members, as
Care shall be taken to thoroughly clean the hardware, fittings, glass panes, doors, etc. of the waste cement
marks, left over paint marks etc.
The rate shall include for providing temporary supports etc., for fixing of frames and shutters at all levels.
The rate quoted shall be inclusive of any chiseling work, raking of sides, sills, soffits, if required and making good
the surface.
The sizes mentioned are for finished items.
Also the rate quoted shall include for:
Planing and finishing smooth all faces of various faces as required.
All screws, nails, pins, key and such other fixing accessories.
Cutting rebates, Grooves etc. in frames/shutters as required or as directed.
Approved glue or adhesive for all joinery work.
Providing seasoned Burma T.W., beech wood best quality, beading, trimmings, beads, weather bars etc. as
called for. Providing rough grounds as per drawings.
Providing as per schedule/drawings all hardware, fittings and fixture like, latches, hinges, tower bolts etc. locks
and other items as indicated for fixing such items supplied by the Engineer-in-charge at no extra cost.
Solignum treatment to all hidden wooden members and all board or ply faces coming in contact with masonry or
concrete faces where retarding treatment is not called for.
Providing and applying pink primer to all wooden surfaces till the same are painted/polished.
Filling and finishing neat gaps around frames, doors, windows etc. with approved mastic.
Work at all heights and locations.
Wherever painting is specified it includes painting the surfaces with three coats of first quality synthetic enamel
paint of approved shade and make over a coat of wood pink primer.
Wherever polishing is specified it include polishing the surfaces with two or more layers of French spirit polish,
with approved additives, stainers to get even shade over a coat of primer of approved chemicals.
All plywood and blackboard edges where exposed shall be finished with teakwood Lipping.
Unless otherwise specified, all door shutters specified are to be solid core flush door shutters, with topping
bonded with phenol formaldehyde and confirming to relevant Indian Standards.
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METAL WORK
The rates shall include for provision of:
All steelwork shall confirm to IS-800 and rolled steel to IS-226 and IS-1977. All pressed steel sections shall be
heavy duty.
Supplying all materials, fabricating, hoisting and fixing in position complete with expansion fasteners, coach
screws, hold fasts, screws etc. and for RCC(1:2:4) blocks of adequate size as directed.
Glazing of windows, ventilators, doors should be as approved by Architect/Consultant.
Supplying and fixing all hardware of specified and approved type and make, confirming to standard practices
followed by approved manufacturer.
Door, windows, rolling shutters, fire doors shall be fabricated by approved manufacturer.
Member’s joints shall be mechanically cut to length mitered and electrically welded with true corners.
Providing Silicon sealant in gaps between frames and masonry/concrete faces after erection.
Painting with a coat of zinc chromate’s primer and three coats of synthetic enamel paint of approved make
including supplying putty to obtain even and smooth finish.
Before fabrication, the contractor must take approval of the Architect/Consultant for type of sections, hardware,
glass etc. to be utilized. He should take actual measurements at site and fabrication shall be done accordingly.
Providing necessary coupling, transoms and mullions wherever required as per relevant I.S. code (I.S. 1038).
WATER PROOFING The rates shall include for:
All necessary labour, materials, tools and equipments for the satisfactory completion of the job.
Preparing the surfaces and providing fillets.
Treating down take pipes, floor traps or any other inserts etc. that may cause leakage.
Work in narrow widths and all locations/situations as called for.
Work at all heights and depths.
Keeping the works well wet for at least 7 days.
Laying to correct slope and level as shown on drawing.
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Protecting waterproof layer over which other materials, fittings, fixtures are to be laid/installed and to prevent
damage from other construction operations.
Waterproofing work shall be guaranteed for a period of 10 years from the date of handing over completed
building work in Performa approved by the Engineer on a stamp paper, where the work is carried out by an
approved proprietary agency and according to their specifications, the guarantee shall be executed by the
proprietary firm and submitted directly to the owner
The waterproofed surface shall be bone dry and there shall not be any moisture or wet patches.
The contractor to supply full details, with the bid of waterproofing he proposes to adopt for various item.
Measurements shall be on the basis of finished dimensions.
Bailing out, pumping out or otherwise removing all water, which may accumulate from all causes.
FALSE CEILING
The rates shall include for:
All necessary labour, materials and use of tools and equipments for the satisfactory completion of the job.
Work at all heights.
Work in narrow widths and all locations as called for and working to specified patterns and profiles.
Carrying out work to correct line and level.
Providing necessary cutouts and framework for lights, fittings, AC grills, trap doors, sprinkler heads, smoke
detectors and similar including supports from ceiling where directed for these.
No deductions for openings less than 0.1 sqm. in area.
Necessary precautions to prevent damage to the flooring and other works.
SPECIFICATIONS GENERAL
These specifications are for work to be done, items to be supplied and materials to be used in the works as
shown and defined on the drawings and described herein all under supervision and to the entire satisfaction of
the Architect/Consultant & owner.
The workmanship is to be the best available and of a very high standard, use must be made of specialist
tradesmen in all types of work and necessary allowance must be made for the same in the rates quoted.
The materials and items to be provided by the contractor shall be the best of their respective kinds as specified in
the tender and in accordance with the samples approved, where materials or products are specified in these
specifications and/or Bill of Quantities by the name of the manufacturer of the brand name, trade name or
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catalogue reference, the contractor will require to obtain prior approval of the Architect/Consultant and owner for
using substitute material or product. The contractor shall produce all invoices, vouchers or receipted accounts for
any materials if called upon to do so by the Architect/Consultant and owner.
Samples of all materials are to be submitted to the Architect/Consultant/owner for his approval before the
contractor orders or delivers in bulk in the site. Samples together with their packing are to be provided by the
Contractor free of charge and approved samples will be retained by the owner and designer for comparison with
the materials which will be delivered to the site.
Should any materials be rejected by the Architect/Consultant/owner, they will be removed from the site at the
Contractor's expense. Also the contractor will be required to submit specimen finishes of colours, fabrics, etc. for
approval of Architect/Consultants/ owner before proceeding with the works. Should it be necessary to prepare
shop drawings, and then four copies of such drawings shall be submitted for approval of the Architect/Consultant
who will retain two copies, all at the Contractor's expenses.
Timber generally is to be the best of its kind, well and property seasoned, of natural growth, free from work
holes, large loose or dead knots or other defects and sawn die square and not to suffer from warping, splitting or
other defects through handling.
The hardwood is to be Hollock or red maranti with moisture contents not more than 20%.
Teak is to be the best quality from Dandeli free from soft heart, worm and bee holes, and weighing not less than
50 lbs. per cubic foot with maximum moisture contents of 12%. Teak veneers and flitches shall match each other
throughout and, where possible, shall match existing flitches in the building.
The particleboard shall be of high density, equal or superior quality to that laid in the I.S. 3478 and as approved
by the Architect/Consultant.
The blackboard shall be of Mysore, Anchor or P.G.Brand, one of the following I.S. Specification or such
approved adhesives shall be used: -
I.S. 851 - 1957: Synthetic Resin adhesive for construction work in wood.
I.S. 849 - 1957: Cold setting case in glue for wood. where glued joinery and carpentry work is likely to come into
contact with moisture, the glue shall be waterproof. The use of animal glues will not be permitted.
Flush doors of hollow framed core insulated construction shall be constructed with 4" wide stiles, top and bottom
rail, one 4" wide horizontal intermediate rail and two 4" wide diagonal braces, filled in solid with approved rigid
type polyurethane doors shall be constructed with one 3" wide and one 5" wide stile, 4" wide top and bottom rail,
one 4" wide horizontal intermediate rail and 2" wide diagonal braces; filled in as described before.
Flush doors of hollow framed core construction shall be constructed with 3" wide stiles and top rails, 5" wide
bottom rail, two 6" wide horizontal intermediate rails with beehive core of 1" wide filling pieces at 4" centers both
ways and blocked out as necessary for lock and hinges. All horizontal members shall have 1/4 dia. borings.
All doors shall consist of selected hardwood properly jointed together and they shall be covered on both sides
with 3/16" teak veneered plywood or as specified. Each door is to be lipped all around with 1/2" teak twice-
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rebated edging tongued to the stiles and rails and mitered. The doors are to be the full thickness as specified.
The lipping on the meeting stiles of folding doors shall be increased to take the rebate as specified.
Frames to doors, windows, etc. shall be of hardwood or teak as specified and to the required sizes with all
necessary mouldings with mortised and tennoned joint, lead and teak pins and secured in position as specified.
Shelves generally shall be constructed of plywood with edgings of 1" teak tongued on.
Timber is to be cut to the required sizes and length as soon as practicable after the works are begun and stored
under cover so that the air will circulate freely around it. Joinery is to be prepared immediately after the
finalisation of the contract, framed up (but not boned) and stored until required for fixing in position, when it is to
be bonded and wedged up. Any portion that warps or develop shakes or other defects are to be replaced before
wedging up. The whole work is to be framed and finished in a proper workman like manner, in accordance with
the detailed drawings, and fitted with all necessary metal ties, straps, bolts, screws, etc.
Turning bonded joints are to be cross-tongued with teak tongues and where over 1/2" thick, to be double cross
tongued. Joiner's work generally is to be finished with fine sand papered surfaces unless otherwise specified.
Templates, boxes and moulds shall be accurately set out and rigidly constructed so as to remain accurate during
the time they are in use.
Grounds are to be clean sawn, free from large knots, splayed as required and plugged and fixed to walls, etc. at
1'-6" centers unless otherwise specified.
Wood plugs are to be cut on the twist. Patent wall plugs or plastic fillings may be used in lieu of wood plugs with
the prior approval of the Architect/Consultant.
All unexpected surfaces of timber, e.g. false ceilings, backing fillets, backs of door frames, cupboard framing,
grounds, etc. are to be treated with two coats of Atlas `A' or other equal and approved timber preservative before
fixing or bedding
The service stations, bar counters, shelving, etc. shall be generally constructed of plywood as described and
specified properly housed, grooved tongued, glued, blocked and screwed together and entirely to the satisfaction
of the Architect/Consultant.
The banquettes, chairs, tables, etc. shall be generally constructed of teak, foam rubber and fabric as described
and specified, properly housed, grooved, tennoned, tongued, glued, blocked and screwed together in the manner
of good quality furniture and entirely to the satisfaction of the Architect/Consultant & owner. A prototype sample
of all custom made pieces must be prepared and submitted to the Architect/Consultant for his owner's approval
before proceeding with the work in quantity.
HARDWARE & METAL:
The hardware throughout shall be of approved manufacture and supply, well made and equal in every respect to
the approved samples to be deposited with the owner and Architect/Consultant. For the purpose of approval of
samples, the contractor may be required to produce and provide to the Architect/Consultant, samples from many
different sources and should allow in his rates for the same.
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Fittings generally shall have satin chrome or anodised finish unless otherwise stated and shall be suitable for
their intended purpose of use.
Screws are to match the finish of the article to be fixed and to be round or flat headed or counter sunk as
required.
The bronze and brass surfaces shall be covered with thick grease or other suitable protective material renew as
necessary and subsequently clean off and clear away on completion.
Aluminium and stainless steel shall be of approved manufacture and suitable for its particular application
Generally, the surfaces of all aluminium shall have an anodised finish and the quality and finish both shall comply
with the samples approved by the Architect/Consultant & owner.
All steel, brass, bronze, aluminium and stainless steel articles shall be submitted for test for strength, if so,
required by the Architect/Consultant & owner, at the contractor's expenses.
All brazing and welds are to be executed in a clean and smooth manner, rubbed down and left in the flattest and
tidiest way, particularly where exposed.
Chromium plating shall be in accordance with B.S. 1224 or as per approved specifications for "normal outdoor
conditions", and shall be on a base material of copper or brass.
FIBRE GLASS
The fiberglass decorative panels shall be constructed or 30% glass fibre chopped strand mat reinforced with 70%
polyester resin; the fibreglass and resin to be either pigmented or sprayed with and fired with tarred paint. The
panels shall be made in moulds to the approved design as per drawings and to the thickness required by the
Architect/Consultant. The fibreglass panels are also obtainable from the approved suppliers.
GLAZING
All glass to be approved manufacture complying with is: 3548-1966, or as per approved quality and sample, to be
of the quality specified and free from bubbles, smoke wanes, air holes and other defects.
The compound for glazing to metal is to be a special non-hardening compound manufactured for the purpose
and of a brand and quality approved by the Architect/Consultant & owner.
In cutting glass, proper allowance shall be made for expansion each square of glazing to be in whole sheet. On
completion, clean all glass inside and out, replace all cracked, scratched or broken panes and leave in good
condition to the satisfaction of the Architect/Consultant & owner.
PAINT & POLISHING
All materials required for the works shall be of specified and approved manufacture, delivered to the site in the
manufacture's containers with the seals, etc. unbroken and clearly marked with manufacturer's name or trade-
mark with a description of the contents and colour. All materials are to be stored on the site of the works.
Spray painting with approved machines will be permitted only if prior written approval has been obtained from the
Architect/Consultant. No spraying will be permitted in the case of priming neither coats nor where the soiling of
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adjacent surface is likely to occur. The nozzle and pressure to be so operated as to give an even coating
throughout to the satisfaction of the Architect/Consultant. The paint used for spraying is to comply generally with
the specification concerned which is to be specifically prepared by the manufacturer for spraying. Thinning of
paint made for brushing will not be allowed.
Wood preservation shall be Solignum or other equal and approved impregnating wood preservative, and all
concealed woodwork shall be so treated.
All brushes, tools, pots, kettles, etc. used in carrying out the work shall be clean and free from foreign matter, and
are to be thoroughly cleaned out before being used with a different type of class of material.
All iron or steel surfaces shall be thoroughly scrapped and rubbed down with wire brushes and shall be entirely
free from rust, mill scale, etc. before applying the priming coat.
Surfaces of new woodwork, which are to be painted, are to be rubbed down, knotted and stopped to the approval
of the Architect/Consultant & owner.
Surfaces of previously painted woodwork which are to be repainted shall be cleaned with soap and water,
detergent solution or approved solvent to remove dirt, grease, etc. whilst wet the surfaces shall be flatted down
with a suitable abrasive and then rinsed down and allowed to dry. Minor areas of defective paint shall be
removed by scrapping back to a firm edge and the exposed surface touched in with primer as described and
stopped with putty. Where woodwork has been previously painted or polished and is to be newly polished, the
same shall be prepared with scrapping, burning off or rubbing down.
Surfaces of previously painted metal which are to be repainted shall be cleaned down and flatted down as
described in surfaces of previously painted woodwork. Minor areas of defective paint and any rust and loose
scale shall be removed completely by chipping, scrapping and wire brushing back to the bare metal and touched
in with primer as described.
PLASTER
Cement/lime plaster for internal surfaces shall be applied in two coats, as follows:
Undercoat 3/8" thick composed of 1 part cement, 4 parts lime putty, 12 parts clean washed sane, measured by
volume, the whole laid evenly, straightened with a rule and scratched to form key.
Finishing coat 3/8" thick composed of 1 part cement, 3 parts lime putty, 6 parts clean washed sand, measured by
volume, trowelled with a steel trowel to a smooth or textured finish in accordance with samples approved by the
Architect/Consultant.
A minimum period of 7 days must elapse between the application of undercoat and finishing coat. The total
thickness of the plaster must not exceed 3/4".
Rough rendering shall be composed of cement and sand (1:4) floated to the thickness required to fill in voids
behind facings, dubbing out to uneven surfaces, etc. Dubboing out must not under any circumstance exceed 1"
in thickness at any point.
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Screeds and backings shall be composed of cement and granite fine or sane (1:3) and shall be properly laid to
rules and floated to a surface suitable to receive the finishings specified.
Mixing of lime/cement plaster, cement rendering and screeds shall be carried out with machine driven roller-pan
mixers of a type and size approved by the Architect/Consultant. For smaller quantities, or in exceptional
circumstances, the Architect/Consultant may require or approve mixing by hand on a clean dry floor or platform.
Measurement of all constituents is to be made by means of gauge boxes. Gypsum plaster shall be of approved
manufacture, delivered to the site in the manufacturer's sealed bags or drums, bearing the name of the
manufacturer and the brand of plaster are to be in accordance with B.S.1191 for the following types -
Undercoat plasters are to be borrowing or "slow setting browning" of class "B", type a - retarded semi-hydrates.
Finishing plaster used on undercoats is to be of Class `B' type b - retarded semi-hydrates or class "B" type c -
dual-purpose plaster.
Finishing plaster used or plasterboard is to be of "Board finish" type, Class "B", type b - retarded semi-hydrates.
Keepe's Cement is to be dual-purpose type in accordance with class "B", type c.
Plaster of Paris to be in accordance with class "B".
Joints of brickwork, etc. are to be thoroughly raked out and loose particles of mortar, etc. brushed out to form key
for plaster. Concrete work generally is to have a coat of "spatterdash" applied to form key for plaster, etc. The
concrete shall be dampened immediately after removal of formwork and "spatterdash" consisting of 1 part of
cement and 2 1/2 parts coarse sand (by volume) mixed to the consistency of a thick slurry, thrown on with a hand
trowel to thickness not exceeding 1/4". The "spatterdash" shall be waited one hour after application and left to
harden.
All pavings, wall linings, etc. are to be adequately covered up and protected until the completion of the works.
The whole of the finished work to be cleaned off and left in a sound and perfect condition to the satisfaction of
the Architect/Consultant & owner. Where particularly, required, pavings will not be laid until completion of all
other work.
Gypsum plaster to surface of concrete or brickwork is to be two-coat as follows:
Undercoat composed of one part "browing" or slow setting browning plaster as described above with two parts of
sand, the whole laid on evenly, straightened with a rule and scratched to form a key.
Finishing coat to be as described above, applied neat of with an admixture of not more than 25% volume by lime
putty, trowelled with a steel trowel to smooth even surfaces.
The total thickness of two-coat work must not exceed 1/2".
Gypsum plasterboard shall be of approved manufacture and in accordance with B.S. 1230. Consisting of a core
of set gypsum plaster in accordance with B.S. 1191 sandwiched between two sheets of heavy paper to a nominal
thickness of 3/8". Plasterboard is to be nailed to timber bearers with 1 1/4" * 12 S.W.G. galvanized screws with
3/8" dis. heads, spaced about 6 inches apart and not less than 3/4" from the edges and ends. Nailing is to
commence at the centre of the board. Boards are to be spaced 1/8" to 1/4" apart at the joints and end joints are
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to be staggered to break bond. The boards are to be fixed and cleaned at least 24 hrs. before the application of
plaster and in no circumstances should it be wetted before plastering.
Gypsum plasterboard is to be prepared for plastering by filling the joints with `board finish' gypsum plaster as
described above and pressing into the plaster, dry reinforcing jute scrime cloth 3 1/2" wide trowelled as flat as
possible. When the plaster to the scrimed joints has set, thin coat of neat gypsum plaster is to be applied over
the whole surface to level up followed immediately by a finish coat to a total thickness of 3/16". The finish coat
when almost set is to be trowelled to a smooth surface using as little water as possible applied with a brush. The
admixture of lime with gypsum plaster will not be permitted.
Internal wall tiling is to be of a quality and equal to samples approved by the Designer as suitable for the
standard of work required. Tiles are to be of `A' Grade. Indian manufacture size 4 1/4" * 4 1/4 * 6mm thick
cushion edge coloured egg shell galzed tiles fixed complete with rounded nosing tiles to external angles or as
specified. The tiles are to be soaked in clean water and brushed on the underside with a cement slurry before
bedding on a cement and sand (1:3) and painted in neat white or coloured cement.
Pavings composed of cement and sand (1:3) are to be trowelled smooth with steel trowel or floated with a
wooden hand float as required.
Dividing strips of brass, stainless steel or plastic as specified and on approval, shall be provided and bedded to,
finished flush with finished floor levels between different types of pavings or where abutting wood floors.
Stone flooring and cladding should be of dimensions, quality and colour as specified and shall conform to the
relevant I.S. specification samples of stone materials should be got approved by the Designer/Client prior to
installation allowed without extra charge, unless such variations are made after conduits, cables, etc. are fixed.
All cables shall be of 1st quality manufacturer and the Main Contractor will be required to submit a samples of
wiring materials to the Designer & owner, for their approval before commencing the installation.
GENERAL SPECIFICATIONS FOR "UPHOLSTERED" FURNITURE :
TIMBER : All timbers used are to be of top quality, free from knots, shakes, and worm holes, and with a moisture
content of not more than 12% depending on the climatic conditions prevailing at the site.
Timbers which are completely hidden, that is when covered by upholstery material, can be of local hardwood,
except where this interfaces with the strength of the product, as in the case of a leg or arm which is part covered
and part finished.
JOINTS : All joints shall be standard, mortise and tennon, dowel, dovetail, and crosshalved. Nailed or glued butt
joints will not be permitted. Screws, nails, etc. will be of standard iron or wire unless stated otherwise on drawing.
Where mortise and tenon joints are used, tenons should fit the mortise exactly. Where screws show or a finished
surface, these will be sunk, and the hold plugged with a wood plug of the same wood and grain of the finished
surfaces, unless otherwise. Nails on finished surface will be neatly punched and the hole filled with wood filler to
match the colour.
UPHOLSTERY : This will be of first class standard workmanship with webbing, no sag springs, coiled springs,
padding and filling as specified on drawing. Covering fabrics will be sewn, tufted, and corded as shown on the
drawing.
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CUSHION VENTS : Brass or Aluminium "cushion vents" should be installed at the back or under side of seat
cushions (especially those covered in leather, vinyl plastic or very tightly woven fabric) to allow air to escape
easily and to prevent torn seams.
MATERIALS : Finished timber shall be of the type specified, furnishing fabrics, colour, pattern, substance to be
as specified, no variation of this will be permitted unless with prior approval of the Designer & owner.
FINISH : This will be as specified on the drawing and colour scheme chart where timber is finished in natural
colour, care must be taken to "match" each searate piece of colour, before assembly. Where timber is stained,
the stain or colour on each member must match.
Only first class workmanship will be accepted. All legs to furniture will be fitted with nylon glides or castors as
specified on the drawing. Full size drawings or prototype samples are to be submitted to the Designer for prior
approval if requested.
FABRIC AND WALL COVERINGS :
The fabrics or wall coverings shall be supplied by the owner in conformity with the details shown on colour
scheme charts. The wall paper or fabric shall be applied with an approved method or adhesive after necessary
preparation of surfaces and in accordance with the manufacturer's recommendations and to the approval of the
Architect/Consultant. The lengths of wall covering are to be hung with an overlap of at least 1" and cut flush as
recommended by the manufacturer. A sample of the colour and style shall be produced for the
Architect/Consultant's / owner approval.
ELECTRICAL INSTALLATION :
The whole of the electrical installation shall be carried out by a major registered licensed Electrical Contractor's
firm.
The electrical installation shall includes for the supply of the whole of the materials and the work of fixing,
necessary for the complete installation. The work shall be carried out in strict accordance with the latest edition of
the Regulations for the Electrical Equipment of Buildings issued by the Institute of Electrical Engineers I.E. rules
and to the satisfaction of and in accordance with rules, regulations, and requirements of the supply company and
the Fire department all to the entire satisfaction of the Architect/Consultant & owner.
The positions of all points and equipment shown on the drawings shall be assumed to be correct for the
purposes of tendering, but it is the main contractors responsibility to check the exact positions on the site before
commencing the works.
NOTE : This specification is of the general type only and must be used in conjuction with the drawing of the
particular item being made. Anything shown on the drawing and not in the specification must be compiled with,
and vice versa.
GENERAL SPECIFICATION FOR CASE OF "CABINET" FURNITURE.
TIMBER : All timbers used are to be of top quality free from knots, shakes, wormholes, and with a moisture
content of not more than 12% depending on the climatic conditions prevailing at the site.
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JOINTS : All joints will be standard, mortise and tennon, dovetail, duel, cross halved, mitred, tongued and
grooved and rebated. Nailed and glued butt joints will not be accepted.
FASTENINGS : Screws, nails, blots, will generally be iron or wire, except in the following examples. "Outdoor
Furniture" fastenings will be of brass or other non-corrosive metal. In hardware, they will match the finish of the
hardware item.
Nails, in a finished surface shall be neatly punched and the hold filled with wood filler matching the finish. Screws
in a finished surface will be round head, raised or sunk beneath the surface, and the hole plugged with a wood
plug with matching colour and grain of the wood surface, unless specially detailed.
PLYWOOD : Used mainly for the body-work of this furniture, shall be Green ply, century or multi ply suitable for
veneering, painting or bonding plastic laminate. It shall be a resin bonded, specification, "marine", brand or
equivalent. Exposed edges will be finished with a piece of solid wood, tongued, grooved and glued, or as
detailed.
HARDWARE : Hinges, locks, latches, door tracks, etc. shall be as specified, and as far as is possible of
specified manufacture. In any variation of this the quality of the substitute shall be equal to or better than the
originally specified, and the sample should be submitted to the designer\owner for prior approval.
METAL : Where metal lags, frames, sheets, etc. are used, these shall be welded, brazed, bolted or revetted as
required and on finished surfaces welding, brazing and revetting shall be neatly smoothened so that no evidence
of this is apparent on the final finish of the metal which will be as specified on drawing.
On all legs wood or metal, nylon glides or heavy duty castors as indicated, are to be installed.
FINISH : This will be as indicated on the drawing and colour scheme charts, and materials (timber, plastic,
laminates, lacquer, paints, etc.) must be as specified. No variation will be accepted unless with the prior approval
of the Designer & owner. "Backs" of cabinets, etc., where wall hung shall be treated with an approved brand or
wood preservative. Full size drawings or prototypes are to be submitted for approval if requested.
NOTE : This specification is of a general type only and must be used in conjunction with the drawings of the particular item being made. Anything showing on the drawing, but not in the specification must be complied with and vice versa.
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LIST OF NOMINATED MATERIALS & SUPPLIERS
MDF NUWUD/Duratuff or equivalent ISI make
Laminated sheet (1.0 mm thick) Formica, Greenlam, Royal touche
Particle board NOVAPAN(India)Ltd.or equivalent ISI make
Acrylic sheet ICI, GE or equivalent ISI make
Commercial Ply wood Archidply, Greenply , Anchor
MR grade ply Conforming to IS 303 Archidply, Greenply, Anchor
Marine grade Ply wood Conforming IS 710 Archidply, Greenply, Anchor
1.1 Scope of work covers supply, installation, testing and commissioning of:
Sanitary ware
Chromium plated (CP) fittings
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1.2 The client reserves the right to supply the sanitary ware and/or the CP fittings in which case, the scope
of work shall cover all fixing devices, water and drain connections generally a defined under the mode of
measurement and schedule of work.
2.0 Standards
2.1 All sanitary ware shall generally conform to IS: 2550 Part I to VIII unless stated otherwise.
3.0 Materials
3.1 General
3.1.1 All sanitary ware and CP fittings shall be new and of approved make, type and colour. All samples of
materials with catalogues, performance data, shall be submitted and got approved before use on the
work. Approved samples along with other approved materials shall be neatly displayed on a board and
such a display board of samples shall always be in exhibition in the construction office of the Engineer-
in-charge. Such display shall be used for the day-to-day checking of the materials on site.
3.1.2 In cases where the materials are supplied by the clients, all such materials shall be inspected and
received in good condition and thereafter, it will be totally under the safe custody of the
tenderer/contractor till they are handed over satisfactorily after installation, testing and commissioning.
3.1.3 Wherever multiple choices of fixtures are offered, the client shall have the final choice.
3.1.4 All fixtures shall be complete with all accessories as required for the working of the said fixture as
specified.
3.1.5 All fixtures shall be fixed in a neat workman like manner true to line and as recommended by the
manufacturers and shown on the drawings. Care shall be taken to fix all fixtures, brackets and
accessories by proper wooden cleats, rawel plugs, bolts and nuts for each fixture and accessories so as
not to leave any tool marks or damages on the finish. All such fixtures shall be tightened with fixed
spanners
3.1.6 Upon completion of the works, all labels, stickers, plasters etc. shall be removed from the fixtures and
all fixtures shall be cleaned with soap and water so as to present a neat and clean toilet.
3.1.7 All fixtures and accessories shall be fixed in accordance with a set pattern matching the tiles or interior
finish as per architectural/interior designer’s requirements. Wherever necessary the fittings shall be
centered to dimensions and pattern design.
3.4 Orissa W.C
3.4.1 Orissa W.C shall be in white glazed vitreous chinaware of size specified. The W.C shall be provided
with a 100 mm white vitreous chinaware P or S trap with or without vents as required.
3.4.2 Each W.C shall be provided with an exposed or concealed type brass flush valve or flushing cistern
generally as for Indian W.C.
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3.5 European W.C
3.5.1 European W.C shall be wall hung / wash down or symphonic, floor or wall mounted in white glazed
vitreous chinaware with integral P or S trap as required. Wall hung W.C shall be supported by C.I or G.I
floor mounted chair. The W.C shall be provided with an exposed or concealed type brass flush valve or
flushing cistern as specified in the schedule of work.
3.5.2 Each W.C shall be provided with a solid plastic seat. The seat shall be fixed to the W.C with CP brass
or S. S. pillar bar hinges. Rubber buffers shall be provided for the cover.
3.5.3 Each W.C shall be fitted with concealed type flush tank along with the bracket stand provided for fixing
the WC with nuts and bolts.
3.6 Urinals
3.6.1 Urinals shall be lipped type large flat back in white glazed vitreous chinaware of size 610 x 400 x 380
mm unless specified otherwise.
3.6.2 Urinals shall be provided with:
i) 15 dia spreader
ii) 32 dia CP dome waste
iii) 32 dia CP P-trap with unions.
iv) CP wall flange and pipe.
All exposed pipes and fittings shall be of C.P brass. The urinals shall be fixed with C.P brass screws.
3.6.3 Urinal flushing shall be through one of the following methods as specified in the schedule of work:
i) Small urinal flush valve with push button.
ii) Auto flush valve with DC long life battery or AC supply.
Auto flush shall be concealed in wall and flush pipe shall be of G.I except the exposed parts which shall
be C.P brass.
3.6.4 Waste pipe for urinals shall be any one of the following:-
a. G.I pipes, heavy quality as per I.S 1239 b. uPVC Pipes conforming to IS 4985: 2000 as specified in the schedule of work or shown on
drawings. 3.6.5 Urinal partitions shall be white glazed vitreous chinaware complete with CP brass screws, anchor
fasteners etc. as required.
3.7 Lavatory Basin
3.7.1 Lavatory basins shall be white glazed vitreous chinaware synthetic or poly marble or any other material
and of size, shape and type specified in the schedule of work.
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3.7.2 Each basin shall be complete with:
i) C.I or galvanised steel supporting brackets & clips as required. ii) 32 dia CP waste and overflow. iii) Pop-up waste or rubber plug with CP chain as specified. iv) 32 dia CP P-trap with cleanout, unions, CP pipe to wall and wall flange
v) 15 dia CP control angle valve/s with CP connections.
vi) Mixing or CP fittings as specified.
3.8 Stainless Steel Sinks
3.8.1 Each sink shall be complete with:
i) 40 dia waste fitting with brass/rubber plug & chain.
ii) 40 dia P-trap with clean out, unions, CP pipe to wall & wall flange.
iii) 20 dia CP control valve/s with CP connections.
iv) Mixing or CP fittings with spout as specified.
3.9 Mirrors
3.9.1 Mirrors shall be plate glass electro coated copper 6 mm thick of guaranteed to be clear, distortion-less
(at all angles) non-wavy of approved make and sample. The size shall be as specified in the schedule
of work.
3.9.2 Mirrors shall be provided with backing of 12 mm thick marine plywood fixed with CP brass semi round
headed screws and cup washers or CP brass clamps as specific or instructed by Engineer-in-charge.
3.10 Hand Drier
3.10.1 The hand drier shall be no touch operating type with solid state time delay to allow user to keep hand in
position.
3.10.2 The hand drier shall be fully hygienic rated for continuous repeat use (CRU).
3.10.3 The rating of hand drier shall be such that time required to dry a pair of hands up to wrists is
approximately 20 seconds.
3.10.4 The hand shall be of wall mounting type suitable for 230V, single phase, 50 Hz, Ac power supply.
3.11 Showers with Concealed Diverter:
3.11.1 Concealed diverter shall be first quality chrome plated finish with high gloss finish single or four way
type concealed pattern with inlet for hot and cold waters and outlet for shower and spout arrangement.
3.11.2 Face plate of the diverter shall be round or square as per Architects’ / Clients recommendation with pop-
up button on top of the single lever diverter for easy operation to switch between shower and spout.
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3.11.3 The shower should be multijet revolving shower with CP finish. Shower should be fitted with CP shower
arm. The spout for the diverter shall be with or without telephone shower arrangement as per the item
mentioned in the bill of quantities.
3.11.4 All the CP fittings shall be fitted with proper face plate. Necessary CP extension piece with Teflon tape
shall be fitted to properly install the CP and bath fitting.
3.12 Health Faucet
3.12.1 Health faucet should be CP with 1.0m long PVC flexible pipe fitted with CP angle cock or twin way bib
cock as per Architect’s / Client’s recommendation.
3.12.2 Internal fitting of the health faucet shall have proper ‘O’ ring to check the leakages.
3.12.3 Health faucet shall be properly cleaned before functioning of the same and to be checked for any
leakages.
3.12.4 Angle cock for the health faucet shall have face plate.
3.12.5 Holder for placing the health faucet shall be fitted properly at height given by the consultant / architect.
Holes with rawl plug to be fixed before fixing the holder. Only CP screws to be fixed in the holder.
3.13 Geyser
3.13.1 All geysers shall be complied with IS: 2082 specifications can be horizontal or vertical type. The
external body should be rust resistance powder coated and shall withstand high pressure upto 6 bars
and working on single phase 230V 50Hz. AC electrical supply.
3.13.2 Heating element should be Two Ceramic element cartridge in case one fails other continue to function
and should be capable of handling little hard water and conforming to IS: 4159.
3.13.3 The tank MOC should be copper with minimum 5 years guarantee and should be long lasting and
should have corrosion free performance.
3.13.4 The outer tank should withstand high pressure from automatic pressure pumps. It should be made up
of high gauge atleast 1mm thick sheet.
3.13.5 The insulation should be polyurethane foam (PUF) or glass wool insulation of atleast 25mm thick and
should reduce the heat loss.
3.13.6 The geyser should have multi-function valve arrangement such as Pressure Release, non-return valve,
drain valve, expansion valve and vacuum release valve.
3.13.7 All the geyser should have safety features i.e. thermal cutout and primary backup devices cast
aluminium body Fusible plug etc. The metal shall be fused only all the other safeties fails and high
pressure.
3.13.8 Geyser should have neon gas field indicating lamp shows functioning for heating elements along with
thermostat and thermal cut out.
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4.0 Installation
4.1 All sanitary ware and CP fittings shall be installed in accordance with the interior requirements. Neat
workmanship and maintaining exact position and level of each fixture shall be the sole objective of the
installation. Care shall be taken to fix inlet and outlet pipes at correct positions. Faulty positioning shall
be made good without any damage to the finished floor or wall tiling and any damage to the finished
surfaces shall be made good at the tenderer/contractor’s cost.
4.2 In order to ensure quality of workmanship and compliance with interior requirements, one or two mock-
up installations shall be done and got approved. Fixtures used in the mock-up may be reused with the
approval of the Engineer-in-charge.
4.3 All fixing accessories like bolts, nuts, brackets etc. may be supplied along with the ware as defined in
the mode of measurement and schedule of work. All such accessories shall be CP brass or galvanized
or stainless steel as approved by the Engineer-in-charge. All exposed pipes and bends shall be of CP
brass.
4.4 The Indian W.C shall be fixed in level in a neat workmanlike manner. The W.C and trap shall be set in
brick bat 1:2:4 concrete mix. Joints between W.C and flush pipe shall be made with a putty or white
lead and linseed oil and caulked well or with approved rubber joints. The joint between W.C and trap
shall be made with 1:1 cement mortar and shall be rendered leak proof.
4.5 The Orissa W.C shall be fixed in level in a neat workmanlike manner. The W.C & trap shall be set in
brick bat concrete 1:2:4. Joint between W.C & flush pipe shall be made with putty of white lead in
linseed oil and caulked well or with approved rubber joint. Joint between W.C & trap shall be made with
1:1 cement sand mortar and shall be rendered leak proof.
4.6 Wall-hung European W.C shall be mounted on C.I chairs which are fixed to the wall and floor using
Anchor fasteners. The bolts and nuts used for fixing the chairs shall be stainless steel and the fixing
bolts for the W.C and chairs could be CP brass or stainless steel. Floor-mounted W.C shall be fixed
with Anchor fasteners using stainless steel bolts and nuts. The gap between the WC and floor or wall
shall be neatly sealed with water proof non-hardening sealant of approved colour. The sealant should
not extrude beyond the foot print or WC outline.
4.7 All W.C’s shall be aligned and levelled with the floor and wall tiles so as to present an integrated look.
Utmost care and skill shall be exercised to achieve a good installation in keeping with the interior
designs.
4.8 Urinals shall be fixed to the wall using Anchor fasteners and stainless steel bolts and nuts. The urinals
shall be held in line and level according to the interior designs and tile modules. Partitions, wherever
required to be provided, shall also maintain line and level as shown on drawings and as required.
supply spreader and drain piping and P-trap shall be of CP brass and installed in a neat and workman
like manner. No unseemly bends or wooden support pieces shall be permitted.
4.9 Wall-mounted lavatory basins and sinks shall maintain line and level as specified by the interior
drawings and also with the tile modules. The supply connections shall be of CP brass from the angle
stop valves to the pillar taps or single level fixture and shall display good workmanship. Drain
connections shall have a CP P-trap with unions and exposed CP drain pipe and a wall flange. In the
case of counter mounted basins and sinks extreme care shall be taken to independently and adequately
supporting the basin and aligning with the opening in the counter slab. Supply and drain connections
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shall be same as for wall mounted basins. The crevices between basin and wall or counter shall be
neatly sealed with a non-hardening sealant of approved colour.
4.10 All accessories like the health faucet, jet spray, liquid soap container, mirror, soap tray, Towel Rod/ Ring
etc shall be neatly fixed as per interior designs. Good workmanship is the essence of all sanitary
installation for achieving the interior design objectives.
4.11 During the construction period, the contractor shall protect all the sanitary fixtures from damage due to
accidental or even intentional mechanical impact with hard objects and also misuse and vandalism.
4.12 Geysers shall be installed and erected in required position with necessary hardware and base should be
grouted as per the situation. The water heater is to be connected to water supply on inlet side by valve
mountings and connected to outlet tap.
4.13 Safety showers shall be installed in the open space or space allocated by architect. Inlet and outlet
points shall be connected to the shower and eye wash with ball valve arrangement. Chain type valve
arrangement is suggested for shower.
5.0 Testing and Acceptance
5.1 The sanitary fixtures form the final terminal units of the water supply and drainage system and should
meet the performance needs as a terminal unit. Each fixture shall be inspected for scratches or
chippings and alignment before acceptance.
5.2 The following design flows shall be verified and validated for acceptance.
W.C Flush valve 15 ltrs. to 20ltrs
Provide test 32 dia valve
connection at the lowest per
flush floor & highest floor.
Flushing Cistern 6 – 9 lit Fill time between two
consecutive flushes
Lavatory CW/HW Pillar taps 15 lpm max. 10 lpm min
Full Basin drain time 3 min To be measured and validated
All tests shall be conducted at each and every fixture except for flush valves which shall be at the lowest
and highest test connections to be made on each riser / downtake. The contractor shall make the
temporary valve connections which shall be plugged with a brass plug after validation.
6.0 Mode of measurement
6.1 Supply of all Sanitary ware & CP fittings shall be measured per unit and shall include the following
6.1.1 Indian WC’s shall include 2# white glazed ceramic foot rests and P or S trap.
6.1.2 Orissa type WC’s shall be complete with P or S trap.
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6.1.3 Flush valves concealed or exposed shall be complete with operating handle and flange
6.1.4 Flushing cisterns shall be complete with fixing brackets, CP flush bend.
6.1.5 European WC’s shall be complete with
i) Integral / separate cistern (as the case may be) ii) Flush bend iii) G.I or C.I supporting brackets iv) Seat cover
6.1.6 Urinals shall be complete with fixing accessories.
6.1.7 Urinal flush valves shall be CP brass concealed or open, manual or automatic as defined in the
schedule of work.
6.1.8 Concealed shower assembly shall comprise
1 or 2 pillar taps with mixer diverter shower head, and spout with or without hand shower.
or
Single lever mixer diverter, shower head and spout with or without hand shower.
6.1.9 Open shower set shall be same as above but with CP brass piping connections to make it as a whole
unit.
6.1.10 The following items shall be measured and paid per number which includes supply and installation:
a) Soap solution dispenser
b) Mirrors
c) Vitreous chinaware traps
d) Urinal partitions
e) Towel rods
f) Soap trays
g) Toilet paper roll holder
6.2 Installation of the various sanitary ware shall be as specified in the schedule of work.
6.3 Health faucet shall be installed on holder with CP screws and flexible pipe with angle valve. All these
comprise to supplying and fixing of the health faucet item.
6.4 Geysers with inlet and outlet connections, CP copper pipes with rubber bushings, o ring, angle valve on
inlet side makes as one unit.
6.5 In case of items which are not defined here, the description under the schedule of work shall be taken in
conjunction with the specifications.
SECTION: 2.3
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WATER SUPPLY SYSTEM
1.0 Scope
1.1 The scope of work shall cover supply, installation, testing and commissioning of: (Concealed and Open
type)
i) Cold and Hot Water distribution piping and valves. ii) Connections to sanitary ware, kitchen/ pantry equipment etc.
iii) Secondary storage tanks, if any.
iv) All valves, masonry valve chambers etc.
v) Insulation of pipes.
vi) Painting of pipes & supports generally as specified and shown on drawings. .
2.0 Standard
2.1 The following standards shall be applicable as revised upto date:
1) IS 2026 Code of practice for water supply in buildings.
2) IS 1239 Part 1 & Part 2 Steel tubes & tubular and fittings
3) IS 778 Gun metal ball ,gate, globe and check valves for water supply.
4) IS 1703 High pressure ball valves
5) IS 781 Screw down Bib taps and stop cocks
6) IS 1879 (Part I to X) Malleable iron G.I. fittings
3.0 Materials
3.1 General
3.1.1 All materials shall be new of the best quality conforming to the specifications. Where different makes
are specified, the choice of make shall rest with the consultants.
3.1.2 All samples of materials with necessary catalogues, performance data shall be submitted and got
approved before use on the work. Approved samples of all materials shall be neatly displayed on a
board and such a display board of samples shall always be in exhibition in the sample room of the
construction office of the Engineer-in-charge. Such a display shall be used for the day-to-day checking
of the materials on site.
3.1.3 In cases where the materials are supplied by the clients, all such materials shall be inspected and
received in good condition and thereafter, it will be totally under the safe custody of the
tenderer/contractor till they are handed over satisfactorily after installation, testing and commissioning.
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3.2 Steel Pipes & Fittings
All steel pipes shall be heavy quality galvanised steel tubes conforming to IS 1239. 3.2.1 Fittings shall be malleable iron galvanised fittings of approved make conforming to IS 1879 (I to X). All
fittings shall have manufacturer’s trade mark stamped on it. Fittings shall include couplings, bends,
tees, reducers, nipples, union, bushes etc. All fittings shall be suitable for the class of pressure of the
piping system.
3.2.2 Flanges shall be galvanised steel screwed type conforming to IS 6392 and the pressure class of the
piping system. Flanges should mate with equipment or valve flanges as the case may be and shall be
complete with bolts and nuts and gaskets suitable for the temperature and pressure of water in the
system concerned. Gasket selections shall be got approved before use and samples of approved
gaskets shall be put on display.
3.3 Valves
3.3.1 Valves 50 mm dia and below shall be heavy duty 16Kg/cm2 gun metal full way valves or Globe valves
conforming to IS 778 and ISI stamped along with the name stamp of the manufacturer.
3.3.2 Where specified, valves of 65 mm size and above may be cast iron flanged sluice valves with non-
rising spindle. Each sluice valve shall be provided with wheel for valves in exposed position and cap
top for underground valves. Suitable operating keys shall be provided for sluice valves with tops.
Sluice valves shall be of best quality conforming to IS 780-1969 of class specified and ISI stamped.
3.3.3 Air valves shall be gunmetal or C.I of size as specified in the Schedule of Work. Each air valve shall
be provided with an isolation gun metal full way valve for size 50 mm dia and below and C.I flanged
valve 65 mm dia and above.
3.3.4 Scour valves shall be gun metal full way valves for sizes upto 50 mm dia.
3.4 Storage Tanks
3.4.1 Storage tanks for water supply should be in reinforced cement concrete or masonry built by the
building contractor or tanks fabricated from G.I or M.S sheets or any other non-metallic such as HDPE
or PE / PP shall be of food material as given in the Schedule of Work.
3.4.2 G.I storage tanks shall be of riveted construction. The sheets shall be of 16 gauge thickness riveted to
angle iron frames. The sheet shall be fixed by means of 6 mm dia rivets at 38 mm pitch on all sides
except top angle iron frame which shall be riveted at 63.5 mm pitch. Holes for riveting shall be drilled
and not punched. White lead shall be applied before riveting the surfaces to be jointed. Alternately,
welded M.S. tanks may be hot-dip galvanised.
3.4.3 M.S. Storage Tanks shall be of welded construction. Welding shall be electrical resistance welding.
Angle irons welded to the sheet shall be spot welded at distance not exceeding 15cms. Size,
thickness of plate and angle iron supports etc. shall be as given in the schedule of quantities and as
shown in the drawings.
3.4.4 All M.S. storage tanks shall be shop painted with one coat of red oxide primer inside and outside. G.I
storage tanks need not be painted unless specifically required by the Engineer-in-charge.
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3.4.5 Drinking water tanks shall be in stainless steel fabricated out of 2.0mm SS 304 sheets and frame work.
The tank shall be argon arc welded and shall be provided with screwed type S.S nozzles for inlet,
outlet overflow & scour. The tanks shall be provided with a 450 mm dia manhole cover with S.S sheet,
S.S angle iron supporting frame, locking arrangement etc.
4.0 Pipe Installation
4.1 General
4.1.1 Shop drawings for the routing of pipes shall be prepared generally on the basis of layout drawings
issued. The shop drawings shall reflect the site conditions, structural beams and columns,
obstructions by way of any construction elements or any other service pipes, ducts etc. The drawings
should clearly indicate openings required in brick or concrete walls, drain valves at low points, air
valves at high points, isolating valves, if any, and invert levels at every 15m intervals. The drawings
should also indicate typical details of hangers, supports, brackets etc. After approval of the drawings,
pipe routes shall be marked with a distinct colour of paint on the site and got it approved by the
Engineer-in-charge.
4.1.2 All openings and chases in brick walls core cuttings shall be made neatly and refilled to a reasonable
finish. However, final finishing will be done by the civil contractor. Openings in concrete walls shall,
however, be made only with the approval of the Engineer-in-charge. Pipe penetrations, through wall or
floor, shall be sealed with an approved fire resistant sealant.
4.1.3 Good workmanship and neat pipe layout are the prerequisites of these specifications. Horizontal pipes
shall be truly horizontal with necessary slopes and hangers or supports as specified and shown on
drawings. Vertical pipes shall be truly vertical and shall be laid away from the walls at least by 10mm
or as required by the Engineer-in-charge. All pipe runs shall be parallel to the ceiling or walls for
presenting a neat appearance. Pipes buried in wall shall be laid in machine-made chases with
galvanised steel anchors.
4.1.4 All pipes before and after testing shall be protected with wooden or brass plugs to prevent ingress of
dust, sand or any extraneous matter.
4.2 Pipe supports; hangers & clamps
4.2.1 Pipe supports, clamps, suspenders shall be pre-fabricated and galvanised (after fabrication). The
support systems shall generally follow the types specified under “PIPE SUPPORTING SYSTEMS”.
Application of support systems shall follow the guidelines in the above specifications. Any other types
of support, suspension or clamping to meet the site conditions shall be got approved before use.
4.3 Galvanised steel piping
4.3.1 Supports for galvanised steel piping shall be as follows:
Size
(mm)
Horizontal
(m)
Vertical
(m)
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Upto 15 1.25 1.80
20 - 25 2.00 2.50
32 - 125 2.50 3.00
Over 125 3.00 400
Additional supports shall be provided at the bends, heavy fittings like valves and near equipment and
as directed by the Engineer-in-charge.
4.3.2 All fittings shall be screwed type unless specified otherwise. However, flanged joints shall be provided
at the following positions:
i) Pairs of flanges for isolation and removal of equipment.
ii) Mating flanges for equipment flange connections.
iii) Mating flanges for valves, strainers, as the case may be.
iv) Pair of flanges or unions at every 15m continuous run of piping.
4.3.3 Entire piping shall be self-draining using eccentric reducers at all change of sections and shall be
pitched 0.3% towards low points where a drain outlet and shut off valve shall be provided. All high
points in the piping shall have air vents with shut off valves.
4.4 Above Ground Piping
4.4.1 Galvanised Steel piping shall be used largely for underground piping. Where it is used overground, the
pipe installation shall follow the specifications for galvanised steel piping except that the support
spacing shall be as follows:
Pipe dia
(mm)
Horizontal
(m)
Vertical
(m)
80 2.5 3.0
110-150 3.0 3.0
Over 150 3.0 4.0
Supports and suspenders shall be at the joints and shall be robust enough to withstand the caulking.
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4.4.2 Joints shall be spigot and socket or double flanged. Spigot and socket joints shall be lead filled
generally as specified for cast iron underground piping while flanged joints shall have a non-asbestos
gasket of approved make and type.
4.5 Underground Piping
4.5.1 Galvanised steel and cast iron pipes shall be laid in excavated trenches of the following sizes:
Pipe dia Trench
(mm) Width Depth
(mm) (mm)
15 -50 300 750
65 - 150 500 1000
Pipes shall be laid on cement concrete saddles spaced as for pipe suspenders and supports. The
saddles shall be made of 1:3:6 cement concrete mix and of approved sizes. Galvanised steel pipes
shall be protected with an approved corrosion protection wrapping confirming to IS:10221 and cast iron
pipes shall be coated with bituminous paint before laying. Sand cushion bed to be provided for
underground piping. Minimum 100mm thick sand bed shall be provided as a cushion for pipes. All
vehicular crossing shall be done by providing RCC pipe sleeve of required diameter as per drawings
and details or as suggested by the consultant. Trenches shall be back-filled and the original surface
restored after the piping is tested and test readings recorded. Excavation and laying shall generally
conform to the specifications under Section “EXTERNAL DRAINAGE SYSTEMS”.
The quality and quantity of jointing material shall be demonstrated to the Engineer-in-charge and got
certified.
4.5.2 All piping shall be laid to the alignment, levels and gradients shown on approved drawings. Care shall
be taken to prevent ingress of sand, earth or any other extraneous matter into the pipes.
4.6 Insulation
4.6.1 Wherever pipes are thermally insulated, the material shall be a flexible light weight elastomeric
material of standard manufacture with the following physical properties:
Composition : Closed cellular with scaled internal and external faces.
Density : 60 –100 Kg/m3
Thermal Conductivity : 0.039 w/mc @ 32C
Fire rating : Self-extinguishing, Low smoke confirming
To ASTM D635 & UL-94V
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Ozone resistance : No scratching ASTM D 1171
Water Vapour permeability : 0.15 perm ASTM C 355
Water absorption : 3% by weight ASTM D 1056
4.6.2 Insulation thickness shall be as shown in the schedule of work. In embedded situations, the pipes shall
be wrapped with PVC tape as specified in the schedule.
4.6.3 Separable well is only for a future temperature sensor. Sensor will be provided by others.
Thermometer wherever required should be dial type or industrial type with a suitable range (40 - 80C)
complete with a separable well.
4.7 Painting
4.7.1 All exposed piping shall be painted as specified under the Section “PAINTING”.
4.8 CPVC pipes and Fittings
CHLORINATED POLY VINYL CHLORIDE [CPVC] pipes shall be from the PVC group. The pressure rating of
the pipes shall be of SDR 11. This CPVC compound shall meet cell class 23447 B as defined by ASTM D1784
and have a design stress of 2000 PSI and a maximum service temperature upto 93°C.
Thermal Expansion and Contraction
Thermal Expansion and Thermal Stresses
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TECHNICAL DETAILS
Outside Diameters and Wall Thicknesses For CPVC 4120, SDR 11 Plastic Pipe As Per ASTM D-2846
Nominal Size
(in.) (mm)
Outside Diameter, in. (mm) Wall Thickness, in. (mm) Pressure Ratting. PSI (Kg.Cm²)
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25 1 6.0 (182.88) 5.5 (167.70) 3.5 (106.68) 3.5
(91.44)
32 1¼ 6.5 (198.12) 6.0 (182.88) 3.5 (106.68) 3.5
(106.68)
40 1½ 7.0 (213.36) 6.0 (182.88) 3.5 (106.68) 3.5
(106.68)
50 2 7.0 (213.36) 6.5 (198.12) 4.0 (121.92) 3.5
(106.68)
65 2½ 8.0 (244.00) 7.5 (228.60) 4.5 (137.16) 4.0
(121.92)
75 3 8.0 (244.00) 7.5 (228.60) 4.5 (137.16) 4.0
(121.92)
5.0 Acceptance, Testing & Commissioning
5.1 Before testing and commissioning, water shall be filled and circulated through the piping system and
flushed out to ensure clean piping. Entire piping installation with all valves fully open, except the
terminal fixture valves shall be subjected to a hydraulical test pressure whichever is higher of the
following:
i) 2 times the dynamic head of the pump plus the gravity head of an over-
head storage or pressure tank.
ii) 2.5 times the no-delivery head (head developed when the discharge valve is closed) of the pump.
5.2 The test shall be for the entire water supply system and shall hold for a minimum of 3 hours without
loss of pressure. During the testing period, the contractor should walk along the entire piping system
along with the Engineer-in-charge and validate that there are no leaks anywhere in the system. Such
validation shall be carried out segment by segment and recorded. Should there be any leaks in any
segment, the system shall be drained, leaks attended and tested once again as above till the entire
piping system is rendered leak-tight and acceptable.
5.3 Flow tests at each and every outlet shall be conducted as specified in Section “SANITARY SYSTEM”
and all test readings and statements of verification shall form the acceptance test documentation. If
the piping was tested in sections during construction phase, all such test records shall form an
appendix to the above documentation.
5.4 Joining CPVC Pipe and Fittings
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CUTTING:
In order to make a proper and neat joint, measure the pipe length accurately and make a small mark.
Ensure that the pipe and fittings are size compatible. You can easily cut with a wheel type plastic pipe
cutter or hacksaw blade. Cutting tubing as squarely as possible provides optimal bonding area within a
joint.
DEBURRING / BEVELING :
Burrs and filings can prevent proper contact between tube and fitting during assembly and should be
removed from the outside and inside of the pipe. Debarking tool, pocket knife or file are suitable for this.
A slight bevel on the end of the tubing will ease entry of the tubing into the fitting socket.
FITTING PREPARATION:
Using a clean, dry rag, wipe dirt and moisture from the fitting sockets and tubing end. The tubing should
make contact with the socket wall 1/3 to 2/3 of the way into the fitting socket.
SOLVENT CEMENT APPLICATION :
Use only CPVC cement or an all - purpose cement conforming to ASTM F 493 or joint failure may result.
When making a joint, apply a heavy, even coat of cement to the pipe end. Use the same applicator
without additional cement to apply a thin coat inside the fitting socket. Too much cement can cause
clogged water ways.
ASSEMBLY :
Immediately insert the tubing into the fitting socket, rotate the tube ¼ to ½ turn while inserting. This
motion ensures and even distribution of cement within the joint. Properly align the fittings. Hold the
assembly for approximately 10 seconds, allowing the joint to set-up.
SET AND CURE TIMES :
Solvent cement set and cure times are a function of pipe size, temperature and relative humidity. Curing
time is shorter for drier environments, smaller sizes and higher temperatures. It requires 10 to 20
minutes for perfect joint.
Note: For sizes above 65 mm (2½”) use IPS 70 primer before applying solvent cement. The purpose of
a primer is to penetrate and soften the surfaces so they can stick together. The proper use of a primer
ensures that the surfaces are prepared for fusion in a wide variety of weather conditions.
BEFORE BEGINNING :
1. Verify the cement is the same as the pipes and fittings being used.
2. Check the temperature where the cementing will take place.
3. Cement takes longer time to set up in cold weather. Be sure to allow extra time for curing. Do not try to speed up the cure by artificial means - this could cause porosity and blisters in the cement film.
4. Solvents evaporate faster in warm weather. Work quickly to avoid the cement setting up before the joint is assembled. Keep the cement as cool as possible. Try to stay out of direct sunlight.
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5. Keep the lid on cements, cleaner, and primers when not are use. Evaporation of the solvent will affect the cement.
6. Stir or shake cement before using.
7. Use 20 mm (¾”) dauber on small diameter pipes, 40 mm (1½”) dauber up through 80 mm (3”) pipe, and a natural bristle brush, swab, or roller ½ the pipe diameter on pipes 4” and up.
8. Do not mix cleaner or primer with cement.
9. Do not use thickened or lumpy cement. It should be like the consistency of syrup or honey.
10. Do not handle joints immediately after assembly.
11. Do not allow daubers to dry out.
12. Maximum temperature allowable for CPVC pipe is 180°F.
13. All coloured cements, primers, and cleaners will have a permanent stain. There is no know cleaning agent.
14. Use according to the step outline in ASTM D-2846, joining of pipe and fittings.
6.0 Mode of measurement
6.1 All pipes above ground shall be paid for the length measured along the centre line of the pipe line laid
and shall be inclusive of all fittings such as couplings, tees, bends, elbows, union. Deduction for
valves shall be made. Rate quoted shall be inclusive of all fittings, supports and suspenders clamps,
painting cutting holes chases and making good the same and all items mentioned in the specifications
and schedule of work.
6.2 All pipes below buried or embedded shall be paid for length measured along the centre line of the pipe
line laid and shall be inclusive of all fittings e.g. coupling, tees, bends, elbows, unions protective
wrapping in lieu of supporting systems. Measurement shall be taken prior the concealing of work.
6.3 Cast iron S/S pipe laid above ground shall be paid for the length measured along the centre line of the
pipe line laid including all fittings joints etc. Deductions for valves shall be made. Pipe going into the
socket shall not be measured. Rate shall be inclusive of supports, suspenders and clamps, laying,
fixing, cutting holes and chases and making good and shall include all items mentioned in the
specifications and schedule of work.
6.4 Cast iron double flanged pipes laid above ground shall be measured. same as S/S. No extra payment
shall be allowed for pipes of nonstandard lengths.
6.5 Cast iron S/S or flanged pipes laid underground shall be measured same as for above ground but the rate shall cover excavation, concrete saddles, back fittings bitumen coating and disposed of surplus earth, cutting holes, chases and making good and all items mentioned in the specifications and schedule of work
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6.6 Flanged joints for Steel pipes shall be measured by number and shall include appropriate number of
bolts, nuts and washers, 3 mm thick insertion gasket of required temperature grade and all items
mentioned in the specifications.
6.7 Items such as gate valves, globe valves, sluice valves, non-return valves, air valves, scour valves etc.
shall be measured and paid by number.
6.8 Steel Storage tanks shall be measured by weight and shall include hoisting, connections and all items
mentioned in the specifications and schedule of quantities. Weight shall be calculated on the basis of
actual sheet and structural used on the finished tank. Nothing extra shall be paid.
6.9 Making connections to pumps, equipment heat exchanger and appliances shall be paid on the basis of
unit length under the relevant items.
6.10 Steel structural supports for storage tanks etc. shall be paid by weight of actual length of member
installed at site multiplied by its theoretical weight given in the manufacturer’s catalogue. Rate shall be
inclusive of hoisting, welding, bolting, painting, cutting and making good the walls and all items
described in the schedule of work and specifications.
6.11.1 Special supporting systems for supporting multiple pipes of multiple agencies shall be paid on the following basis:
i) Theoretical weight of structural members used multiplied by the quoted cost per quintal.
and ii) Deduct for cost of normal supports as specified at the rate of 5% on quoted rate of all the
pipes supported (excluding cost of valves & insulation but including cost of fittings &
flanges)
SECTION: 2.4
INTERNAL DRAINAGE SYSTEMS
1.0 Scope of Work
1.1 The scope of work shall cover:
i) Soil and waste drainage piping including:
a. soil, waste and vent stacks. b. connections to sanitary ware c. waste connections to kitchen, other appliances, floor traps etc. d. connections to external sewerage system
ii) Storm water drainage piping including
a. roof drainage b. storm water downtakes c. connections to external storm water drainage system.
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2.0 Standards
2.1 All materials and the installation shall meet latest of the following standards:
1) IS : 3989 Centrifugally cast iron pipes
2) IS : 6163 Centrifugally cast low-pressure iron pipes
3) IS : 1536 Centrifugally cast iron pressure pipes
4) IS : 782 Pig lead.
5) IS : 1726 CI manhole frames & covers.
6) IS : 5329 Code of Practice for Sanitary pipe work.
7) IS : 3114 Code of practice for laying of cast iron pipes
8) IS : 1239 Steel tubes & tubulars
9) IS : 1879 Malleable iron GI fittings
10) IS : 4985 uPVC Pipes
11) IS : 13592 uPVC Pipes SWR
3.0 Materials
3.1 General
3.1.1 All materials shall be new and of the best quality conforming to the specifications. Where different
makes are specified, the choice of make shall rest with the consultants.
3.1.2 All samples of materials with necessary catalogues and performance data shall be submitted and got
approved before use on the work. Approved samples of all materials shall be neatly displayed on a
board and such a display board of samples shall always be in exhibition in the sample room of the
construction office of the Engineer-in-charge. Such a display shall be used for the day-to-day checking
of the materials on site.
3.1.3 In cases where the materials are supplied by the clients, all such materials shall be inspected and
received in good condition and thereafter, it will be totally under the safe custody of the
tenderer/contractor till they are handed over satisfactorily after installation, testing and commissioning.
3.2 Cast Iron Pipes & Fittings
3.2.1 Cast iron pipes shall be centrifugally cast low pressure cast iron spigot and socket pipes conforming to Indian Standards specified and generally meeting the following :
Nominal
Diameter
Thickness
(mm)
Weight of
1.83m length
Internal
Diameter
Depth
of lead
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Inch (mm) (Kg) of socket
(mm)
(mm)
50 3.5 8.5 73 25
75 3.5 12.7 99 25
100 4.0 19.2 126 25
150 5.0 35.5 178 38
Acceptable tolerance for pipes to IS 3989 and IS 1729 shall be as follows
a) Wall thickness -15 %
b) Length +/-20 mm
c) Weight -10 %
All joints shall be with lead caulking.
3.2.2 Centrifugally cast low pressure iron pipes without sockets (socket-less) shall conform to IS 6163. Fittings shall be socket-less and all joints shall be with a synthetic rubber sealing collar with a stainless steel clamp with two S.S bolts for application of uniform pressure. All materials shall be from approved manufacturers.
3.2.3 Fittings shall be cast iron compatible with the pipes used. Tees, bends, crosses and other specials
shall have easy sweep as specified. Cleaning eyes shall be provided wherever required and shall be
complete with a sealing gasket and suitable bolts. Cleaning eyes should not be along the flow (such as
bends) but behind (such as Y or T).
3.3 PVC Drainage Piping
3.3.1 All uPVC SWR pipes shall conform to IS 13592 & uPVC pipes 4985 and Fittings shall be as per IS
14735-1999 with Latest Amendment. All PVC drainage piping shall be factory made complete systems
of any approved make together with all the fittings, sealants, PVC to cast iron transition fittings.
Systems of one make shall be used in the entire building without mixing different makes.
Nominal
Diameter
DN
Mean Outside Diameter of Pipe Outside Diameter of Pipe at Any Point Wall Thickness
Min Max Min Max Min Max
75 A 75.00 75.30 74.10 75.90 1.80 2.20
75 A 75.00 75.30 74.10 75.90 3.20 3.80
110 A 110.00 110.40 108.60 111.40 2.20 2.70
110 B 110.00 110.40 108.60 111.40 3.20 3.80
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160 B 160.00 160.50 158.00 162.00 3.20 3.80
160 B 160.00 160.50 158.00 162.00 4.20 4.80
3.6 Traps & Seals
3.6.1 All traps shall be self-cleaning and the material and the seal depth shall be as specified below
wherever the traps are not integral with the appliances or ware.
Appliance or ware Trap
Material Type Seal depth (mm)
Lavatory/Wash basin (1) CP brass P 50
Sinks (1) CP brass P 50
Floor drain Cast Iron built-in P or S 50
Kitchen Floor drain
or fabricated drain boxes
Fabricated Stainless Steel
(built-in)
P 50
Urinals (1) C P brass P 50
Fan Coil Units Galvanised steel P 25
Air Handling Units Galvanized steel P 50
(All P-traps shall have cleaning eye or other cleaning facility)
Any other appliance shall have an appropriate trap as specified by the Engineer-in-charge or as
required.
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3.6.2 All floor drains shall be covered with perforated stainless steel grating of size specified or required.
Roof drain outlets shall have dome grates unless specified otherwise. Plant room floor drains shall
have cast iron or fabricated steel grating.
3.7 Cleanouts
3.7.1 Cleanouts other than those integral with the fitting, shall be of brass and screw down type. Wherever
cleanouts are required in cast iron piping, galvanised steel adaptor shall be provided as part of the
cleaning system.
3.7.2 Cleanouts in uPVC SWR pipes and fittings shall be of same type. Wherever cleanouts are required in
PVC SWR piping, PVC end caps shall be provided as part of the cleaning system.
4.0 Drainage System Installation
4.1 General
4.1.1 Shop drawings for the routing of pipes shall be prepared generally on the basis of layout drawings
issued by the consultants. However, the drawings shall reflect the site conditions, structural beams
and columns obstructions by way of any construction elements or any other service pipes, ducts etc.
The drawings should clearly indicate openings required in brick or concrete walls and invert levels at
every 15m intervals. The drawings should also indicate typical details of hangers, supports, brackets
etc. After approval of the drawings, pipe routes shall be marked with a distinct colour of paint on the
site and got it approved by the Engineer-in-charge.
4.1.2 All openings and chases in brick walls shall be made neatly and finished but the final, finish will be by
others. Openings in concrete walls shall, however, be made only with the approval of the Engineer-in-
charge. Pipe penetrations, through wall or floor, shall be sealed with an approved fire resistant sealant.
4.1.3 Good workmanship and neat pipe layout are the prerequisites of these specifications. Horizontal pipes
shall be truly horizontal with necessary slopes and hangers or supports as specified and shown on
drawings. Vertical pipes shall be truly vertical and shall be laid away from the walls at least by 50mm
or as required by the Engineer-in-charge. All pipe runs shall be parallel to the ceiling or walls for
presenting a neat appearance. Pipes buried in wall shall be laid in machine-made chases with
galvanised steel anchors.
4.1.4 All pipes before and after testing shall be protected with wooden or brass plugs to prevent ingress of
dust, sand or any extraneous matter.
4.2 Pipe supports; hangers & clamps
4.2.1 All pipe supports, hangers & clamps shall be standard pre-fabricated galvanised (after fabrication)
units. Pipe supports shall generally follow the types specified under “PIPE SUPPORT SYSTEMS” and
the associated drawings.
4.3 Soil & Waste Piping
4.3.1 Horizontal pipes shall be suspended from the structural ceiling slab or wall brackets at the following
centres:
Pipe dia Support centres
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(mm) (m)
32 1.8
50 - 100 2.0
Over 100 2.5
Pipes shall be laid to an optimum slope of 1 in 60 as far as possible. A liberal provision of easily
accessible cleanouts shall be made on all horizontal pipes. Cleaning facility shall preferably be from
the floor above the ceiling slab for all under floor installations. Where horizontal pipes are laid in a
sunken floor slab, adequate slopes shall be achieved through galvanised saddles or cement mortar
bedding. All such pipes, after testing, shall be covered with and set in cement concrete (1:2:4) so that
the pipes are not disturbed during the filling up of the sunken floor.
4.3.2 Vertical stacks shall be truly vertical and parallel to the wall and supported on saddles so that the pipes
are at least 50mm away from the finished surface. Branch pipe connections shall be aligned with the
bend or tee on the stack. Where the vertical stack meets the horizontal run or a manhole, a 45o tee
connection with a cleanout shall be employed to facilitate smooth flow and easy cleaning.
4.3.3 Cast iron spigot and socket pipes and fittings shall be jointed through lead caulking. The annular
space between the socket & spigot will be first well packed with bitumen-soaked spun yarn and dried,
leaving the required space for lead. The joints may be leaded by wrapping a ring of hemp rope
covered with clay around the pipes at the end of the socket, with a hole through which molten lead
shall be poured in. Lead used shall conform to IS 782. The joint shall be filled in one pour only.
Before caulking the overflow of lead shall be removed by chiselling. The joint shall then be caulked all
around with proper caulking chisel and hammer weighing 1 to 1.5 Kg in such a manner as to make the
joint neat and flush with the socket and totally water and air tight.
4.3.4 Cast iron socket-less pipes shall be joined by using rubber/neoprene sealing tube and a stainless steel
clamp with two bolts. All materials and method of jointing shall strictly conform to manufacturers
standards and recommendations.
4.3.5 Galvanised steel drain piping shall be used for appliances, wash basins, sinks, bath tubs etc. using
screwed malleable galvanised fittings with approved sealants. Elbows may be avoided as far as
possible and long- sweep bends are preferred for smooth flow. Joints between the galvanised steel
pipe and cast iron shall be done through appropriate fitting and lead caulking as shown on drawings or
as instructed by the Engineer-in-charge.
4.3.6 Where specified, lead pipes may be used for waste, vent and WC connections. Pipe size shall be as shown on drawings or as required for the appliance. Lead pipes shall be straightened by wooden mandrels and bent to shape by dry sand filling. Joints of lead pipes shall be wiped solder joints. The pipe ends to be jointed shall be cleaned with a wire brush and free from oxide if any. Chalk shall then be rubbed to kill the greasy nature of lead. After this plumber’s black shall be applied. A fine shaving of lead shall be removed from this with shave hook. Molten alloy shall then be smeared over the prepared surface. The molten solder, and alloy composed of 3 parts of tin and 7 parts of lead shall be poured in a thin stream from a saddle moved in an elliptical direction over the joint position including a portion of the pipe at each end beyond the mark. When sufficient solder has been poured the joint shall be wiped with pad of wiping cloth with long continuous movements in one direction only so as to leave a neatly formed elliptical shaped joint. Surplus solder remaining on the joint shall be removed. The joint shall be water tight, air tight and shall be free from burrs, strings or droppings and shall be 60 to 90mm in length depending on the pipe diameter.
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4.3.7 Joint between lead pipe and cast iron pipe or stone ware pipe shall be made as follows :
One end of a brass thimble shall be slipped into or over the lead pipe and jointed to it by means of a
wiped solder joint. The other end of thimble shall then be inserted into the socket of the cast iron or
stone ware pipe. In case of cast iron the joint shall be made with molten lead and in case of the stone
ware the joint shall be made with cement mortar 1:1.
4.3.8 Where specified, PVC pipes may be used for waste, vent and WC connections. Pipe size shall be as
shown on drawings or as required for the appliance. Pipe connection to the cast iron piping shall be
through appropriate adapter.
4.3.9 All pipes shall be fixed in a gradient towards the outfalls of drains. Pipes inside a toilet room shall be in
chase unless otherwise shown on drawings. Where required, pipes may be run at ceiling level in
suitable gradient and supports shall be as follows:
Pipe Material Vertical Horizontal
(mm) (mm)
GI 3000 2400
PVC 1800 1200
Lead 1200 1200
Cast iron pipes shall be supported at every joint and 1800 centre to centre.
4.3.10 Cast iron floor drains shall be set in 1:2:4 cement concrete. Kitchen floor drain boxes shall be as
shown in drawings and kept flush with the finished floor. The drain boxes shall have a minimum of
50mm water seal and a suitable perforated grating. Drain boxes shall be connected to the cast iron
drain piping through a flanged galvanised steel drain connection.
4.3.11 All waste connections shall have the following minimum sizes:
Appliance Diameter mm)
Wash basins 40
Sinks 50
Urinals 50
Bidets 30
Shower trays 40
Bath tubs 50
Floor drains 75/80
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4.4 Vent Piping
4.4.1 Building vent stacks shall be not less than 75mm dia. Where the vent stack becomes one with the
main soil or waste stack the main stack size shall not be reduced. Vent connections on any branch
waste drain line shall be at least two thirds the diameter of the branch drain subject to a minimum of
25mm. Vent connection to a soil drain line shall be a minimum of 32mm dia. Vent connections shall be
as near to the crown of the trap but not farther than 450mm.
4.4.2 No water shall enter a vent lines. Vent lines shall be laid vertically terminated at least 150mm above
the open-to-air roof. Vents may be connected back to the waste or soil stack above the highest
appliance connection and the said stack extends beyond the roof by at least 150mm into the air.
4.5 Cleaning plugs
4.5.1 Cleaning plugs shall be easily accessible and convenient for rodding. Such plugs shall be liberally
provided so that the entire drainage system could be easily cleared of all possible chokes. All clean
outs shall be behind the flow and as far as possible, plug bends may be avoided.
4.6 SWR Pipes & Fittings
• (Type A & Type B as per IS 13592) all pipes are socketed on. The socket has groove inside for rubber
ring. The rubber ring ensures trouble free water tight joint with allowance to thermal expansion /
contraction. One end of the pipe is plain and other end is self socketed with an integral groove to hold
the rubber gasket. When joined with a rubber ring, the joint formed is a trouble free, water tight one,
ready to take care of thermal expansion / contraction.
• The installation of waste water systems can significantly reduce noise levels when compared with other
piping systems. When installing high-performance sound-insulating waste water piping systems,
however, it is still necessary to consider how effectively the system can be sound-isolated. This
applies to the waste water discharge system as a whole, including its points of contact with the
building structure (pipe brackets and clamps, the running of pipework through walls and ceilings,
mortar droppings between pipes and wall surfaces, etc.). When planning pipe installation, waste water
discharge pipes should not be allowed to run inside the walls separating living areas. The attachment
of waste water discharge pipes to partition walls in living areas should only be carried out under
application of special noise protection measures.
JOINING METHODS :
RINGFIT JOINING METHOD :
I. CUT PIPE : Cut pipe square. As joints are sealed at the base of the fitting socket. An angled cut may
result in joint failure.
II. REMOVE BURR AND BEVEL : Remove all burr from inside and outside of pipe with a knife-edge, file,
or deburring tool. Chamfer (bevel) the end of the pipe 10º - 15º.
III. CLEAN : Remove surface dirt, grease, or moisture with a clean dry cloth.
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IV. INSERT PIPE : Insert the pipe in to the socket without the seal ring and mark along the pipe, when it is
fully inserted.
V. FIX RUBBER RING : fix the rubber ring in the groove without twisting it.
VI. APPLY LUBRICANT : Apply jointing lubricant to the chamfered end of the pipe & on rubber ring up to
the mark made on spigot or to the socket end of fitting.
VII. JOIN PIPE AND FITTINGS : Push the pipe firmly into the socket till the gap between the mark on the
spigot and the socket is about 10 mm to allow thermal expansion.
4.7 INSTALLATION OF TRAPS
• Select right type of trap from "P" / "Q" / "S" traps as per the outlet angle required. Place the trap on firm
base, pour with concrete on a slab and set it relative to the level of finished floor.
• Concrete can be poured around "P" / "Q" / "S" trap but outlet to the trap must be left open clear to
concrete. Place W.C. connector ring to the socketed end of trap.
• Apply rubber lubricant on W.C. connector ring and on outer side of W.C. pan . Join W.C. pan to trap by
using W.C. pan to 125 mm socket of trap.
• Solvent cement can be used to make joints when 110 × 110 mm traps are being used to join connectors
other than W.C. Pan connection.
• In such cases, outlet of traps can be inserted in the socketed end of pipe or fittings which ever is
applicable and joint can be solvent cemented.
5.0 Acceptance, Testing & Commissioning
5.1 Pre-commissioning checks
5.1.1 A walk-through inspection shall be carried out and the following checks made:
Layouts are according to the drawings and identify variations.
Material used are as specified, new and as per approved samples.
All fixtures viz. Suspenders, brackets, clamps etc. are adequate and firmly fixed and spaced as
specified.
Cleaning eyes are duly plugged and are easily accessible.
No visible damages or cases of bad workmanship.
Check water seals in traps by discharging adequate number of appliances.
5.1.2 During construction, the piping shall be tested in sections so that the maximum static head of water is
not more than 4.5m. All such sectional tests shall be witnessed and signed by the Engineer-in-charge.
Records of these tests shall form the Acceptance Test documentation.
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5.1.3 An air test shall be conducted as specified in IS:5329 with a test pressure of 50mm water gauge. If
the pressure is not holding, then a smoke test shall be conducted through a smoke generator to track
down the leaking points. After attending to the leaks, the piping shall be air tested again.
5.1.4 Hydraulic Performance Tests shall be conducted on each stack by simultaneous release of water
through various appliances like WC’s and bathtubs to ensure water sealing of traps.
6.0 Mode of measurement
6.1 The following notes shall be taken into account while arriving at the unit rates.
i) When the G.I waste piping from wash basins, sinks and bath tubs are directly connected to C.I
waste stack necessary C.I fittings shall be provided in the C.I waste stack for making the
connection, and this shall be measured along with the waste pipe and no extra shall be payable
on this account.
ii) Tenderers are requested to indicate the material, labour & total rate for the various items in the
schedule, especially for items under Sanitary Installation. It may be noted that the employer reserves
the right to supply items of Sanitary wares and fittings. Accessories for the corresponding items
under “Schedule of Work” will have to be provided by the contractor.
iii) While quoting rates for steel piping as per schedule of work, the tenderers have to quote for one
of from make list. Contractor may indicate rebate on piping work, if they are allowed to use non Tata
pipes such as GST, BST, Jindal etc.
6.2 All CI soil, waste & vent pipes shall be measured net when fixed correct to a centimeter
including all fittings along its lengths including supports, suspenders, brackets, clamps, jointing etc.
When collars are used, in CI soil, waste and vent pipes they shall be measured along with and paid
as pipes and no extra shall be paid for collars or fixing them to wall with holder bat clamps. No
allowances shall be made for the adjacent pipes or fittings. The above will apply whether pipes are
fixed on wall face or pipes are embedded in masonry or pipes suspended from the ceiling.
6.3 CI LA class pipes shall be measured net, when fixed correct to a centimetre including all fittings along
its length including supports suspenders, brackets, clamps jointing etc.
6.4 GI, PVC Polyethylene pipes shall be measured per running meter correct to a centimetre for the finished
work, which shall include fittings e.g. bends, tees, elbows, reducers, crosses, sockets, nipples and nuts,
supports, suspenders, clamps etc. The length shall be taken along centre line of the pipes and fittings.
6.5 Cement concrete around pipes shall be measured per cubic meter and include any masonry supports,
shuttering and centering cutting complete as described in the relevant specifications.
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SECTION: 2.6
EXTERNAL DRAINAGE SYSTEMS
1.0 Scope
1.1 The scope of work shall cover supply, installation and commissioning of:
i) Storm water & sanitary sewer drainage including
a) excavation and back filling of pipe trenches.
b) construction of open drains & catch basins
c) laying of pipe drains
d) final connection to the public storm water drainage & sewerage drainage system.
2.0 Standards
2.1 All materials and the installation shall meet latest of the following standards revised upto date:
1) IS : 3989 Centrifugally cast (spun) cast iron pipes
2) IS : 6163 Centrifugally cast low pressure cast iron pipes
i) Spigot and socket type ii) Socket-less type
3) IS : 651 Salt glazed stoneware pipes
4) IS : 458 Concrete pipes
5) IS : 4989 HDPE pipes for potable water supplies,
sewage & industrial effluents
6) IS : 4985 UPVC pipes for external rain water pipe
7) IS : 3114 Code of practice for laying of cast iron pipes.
8) IS : 13592 UPVC SWR pipes for external drainage.
3.0 Materials
3.1 General
3.1.1 All materials shall be new and of the best quality conforming to the specifications. Where different
makes are specified, the choice of make shall rest with the consultants.
3.1.2 All samples of materials with necessary catalogues performance data shall be submitted and got
approved before use on the work. Approved samples of all materials shall be neatly displayed on a
board and such a display board of samples shall always be in exhibition in the sample room of the
construction office of the Engineer-in-charge. Such a display shall be used for the day-to-day checking
of the materials on site.
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3.1.3 In cases where the materials are supplied by the clients, all such materials shall be inspected and
received in good condition and thereafter, it will be totally under the safe custody of the
tenderer/contractor till they are handed over satisfactorily after installation, testing and commissioning.
3.2 Pipes & Fittings
3.2.1 Cast iron pipes shall be centrifugally cast low pressure type to IS : 3989 or IS : 6163. Fittings shall be spigot and socket type suitable for the make of pipe used. All joints shall be lead caulked.
3.2.2 Stoneware pipes shall conform to IS : 651. Pipes shall be salt glazed and of uniform thickness. Pipes shall be free from cracks, air-blows and fire blisters. All joints shall be made of cement mortar 1:1.
3.2.3 Cement concrete spun pipes shall conform to IS: 458 and shall be of NP2 class. All pipes shall be dowelled for making a leak tight joint with a collar. Collar joints shall be made of cement mortar 1:1.
3.2.4 uPVC pipes shall conform to IS: 4985 for external rain water & uPVC 13592 SWR for external Drainage fittings should be Ring fit type .
4.0 Excavation and Back filling
4.1 Excavation for pipe trenches shall not be excessive but adequate for pipe laying and jointing.
Generally trench width shall be pipe diameter plus 200mm on either side subject to a minimum of
600mm upto a depth of 2000mm and 750mm beyond and upto 5000mm. Bottom of trench shall be
100mm below the pipe invert level. Actual excavation will be measured and paid for on actuals subject
to the maximum as defined above. Wherever directed by the Engineer-in-charge, the depth of
excavation may be increased owing to poor soil conditions. In all such cases, the trench will be filled
up with gravel or cement concrete upto the required level. All such extra excavation and gravel or
cement concrete filling shall be paid for as extra.
4.2 Excavation for manholes, inspection chambers, and catch basins shall be done 300mm alround the
base foundation. This is to allow ease of construction. Excess excavations shall not be admissible for
payment.
4.3 Excavation for pipe trenches shall be in open cutting with reasonably vertical sides. For excavation
deeper than 1500mm, the trench sides shall be shored up with timber or steel sheets with adequate
strut support to prevent slippage and side collapse.
4.4 The drainage lines shall be set out in straight lines between manholes. The alignment shall be done
by suitable ranging rods and levels established by proper levelling instruments.
4.5 All excavated soil and debris shall be neatly stacked alongside the trench as directed and used for
refilling and the surface finished to its original condition. Surplus soil and debris shall be promptly
disposed off making the site clean and clear of unwanted debris. Wherever subsoil water enters the
trench, proper arrangements shall be made for dewatering. Wherever the excavated surface is a turf or
paving, care shall be taken in properly preserving the turf and paving material so that the same can be
reused when the surface is refinished. Rates for excavation shall therefore cover all the costs of the
contingent works.
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4.6 Trench excavation, pipe laying, testing and refilling shall be programmed along with the Engineer-in-
charge so that needlessly long lengths of trenches may not remain open causing undue obstructions to
site movements. Where blasting is unavoidable, it shall be permitted after securing the approval of the
authorities concerned. Hours of blasting and safety precautions shall meet with the requirements of
the local authority and the directions of the Engineer-in-charge.
4.7.1 After the laying of the pipe line or any other work has been finished and proved to be watertight, the trench or other excavation shall be refilled. Utmost care shall be taken in doing this, so that no damages shall be caused to the pipe drains and other permanent work. The filling in the haunches and upto 750 mm above the crown of the pipe, shall consist of the finest selected material placed carefully in 250 mm layers and watered and consolidated. After this has been laid, the trench and other excavation shall be refilled carefully in 250 mm layers being watered to assist in the consolidation, unless the Engineer-in-charge shall otherwise direct.
5.0 Cement Concrete Laying
5.1 Wherever required, cement concrete shall be laid for foundations or bedding or saddles. The cement
concrete shall consist of clean hard broken stone with irregular surfaces, clean washed sand and
Portland cement mixed in the proportions indicated in the drawings or as described in the detailed
specifications for the particular classes of work or in the relevant items of the schedule.
5.2 The materials shall be kept clean and dry before being mixed. The mixing shall be done on a specially
constructed platform. The mixture shall be thoroughly turned over several times till a thorough and
uniform mix has been achieved. The concrete mix then shall be filled in iron pans and immediately
carried to the works spot. Generally machine mixing shall be preferred to hand mixing for large
volumes of concrete.
5.3 All form work or shuttering and their supports shall be of ample strength to withstand the weight of the
concrete and the shocks due to ramming without distortion or sagging. They shall be finished smooth,
accurately fitted and water tight. The surface against which the concrete is to rest shall be plain.
Paper, lime mortar and other expedients to make good the defects in joinery, will not be permitted.
Form work shall be cleaned and repaired where necessary if it is to be reused.
5.4 The concrete shall be conveyed to the place in such a manner that there shall be no tendency for the
separation of the different ingredients and it shall not be dropped into position from a height greater
than 1.5 m. The concrete shall be placed, rammed and tamped as shall be required by the Engineer-
in-charge. It shall not be interfered with once it has commenced to set. When new concrete is to be
placed on the existing concrete, the surface of the old concrete shall be thoroughly washed roughened
before the new concrete is laid thereon. The joint between the old and the new work shall be made
with cement sand slurry (1:1) being laid over the surface of the old concrete which is roughed, washed
and wetted.
5.5 The concrete shall be kept wet at least for 15 days after laying. After it has been laid, it shall be
covered with gunny bags which shall be kept constantly wet by the applications of water.
6.0 Pipe Laying
6.1 General
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6.1.1 A shop drawing of the proposed layout of the sewerage and storm water drainage shall be prepared
after a detailed route survey. The drawing shall indicate among others:
a. Surveyed route of the sewer lines and storm water drain lines indicating existing obstructions by way of pathways, buildings, lawns, and any other known service lines.
b. Locations of inspection chambers (IC), galleys, manholes and catch basins in relation to the paving patterns, if any.
c. Invert levels vis-a-vis outfall public sewer or storm drain or any sewage treatment plant.
d. Proposed diversion of existing service lines.
On upon approval of the drawings and details the work shall be commenced.
6.2 Stoneware pipe laying
6.2.1 Stacking and laying of stone ware pipes along the trenches shall be done in a manner as to cause the minimum inconvenience to public and traffic. Cracked pipes whether at the socket or body shall be rejected. All stoneware pipes should be carefully fitted together on the surface of the ground to ensure proper fit before they are lowered. The barrels, spigots and sockets are properly cleaned, scrapped and brushed and lowered by hand to the bottom of the trench and on to the bedding. The bedding shall be minimum of 100mm of shifted earth and after laying the bedding is to be worked and compared upto the centre of the pipe so as to ensure proper bedding of the pipe. After testing and rectification of leaks the back filling shall be compacted upto 750mm above the crown of the pipe in 250mm layers and then only should the back filling to the top completed.
6.2.2 Pipes shall be laid carefully to the alignment, levels and gradients as directed and care shall be taken
to prevent any sand, earth or other matter from entering the pipes during laying. The pipes between
manholes shall be laid truly, in straight lines, without vertical or horizontal deviations. All inverts shall
be laid from sight rails fixed at the true levels, with proper boning rods. The pipes shall have sockets
facing up the gradient beginning at the lower end, and with the socket resting in the socket holes cut in
the concrete bed if specified. Each pipe shall be laid singly, and no pipe shall be laid until the trench
has been excavated to the required depth for a distance of 20 mts. in front of the pipe to be laid.
6.2.3 In each joint a gasket of tarred yarn shall be placed round the joint, and inserted in it by means of
suitable jointing tools. More strains of yarn shall be added and well rammed home. The yarn will be
moistened to avoid absorption of water from the mixed cement mortar. Portland cement mortar (1:1)
shall be fixed in the joint as described hereunder :
The cement mortar paste shall be carefully inserted into the joint by hand and shall be caulked into the
joint with wooden caulking tools. More cement shall be added until the space of the joint is filled
completely with tightly caulked cement mortar paste and smoothly finished. Depths of yarn and
cement mortar paste for different sizes of pipe joints are given below.
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Internal
dia of pipe
(mm)
Depth of
Socket
(mm)
Depth of
yarn
(mm)
Depth of cement
mortar paste
(mm)
100 50 22 28
150 60 28 28
250 65 32 32
6.3 Concrete pipe laying
6.3.1 Concrete pipe laying shall follow generally the specifications for stoneware pipes. Pipes shall be laid
on cement concrete saddles as shown on drgs. and as directed by the engineer-in-charge.
6.3.2 After the concrete saddles have been laid properly as specified in the schedule, concrete pipes shall
be lowered gradually into the trenches over the concrete saddles or bed. Holes for collars shall be
made at every joint. These holes will be made depending upon the particular length of the pipe being
laid. The pipes shall be levelled properly to requirement. The pipe shall rest on the bed at every point
throughout its length. To ensure this, the space between the underside of the pipes and the invert of
the cradle shall be carefully grouted solid with thin cement slurry consisting of 1 part of cement to 3
parts of clean washed sand in such a manner that no voids shall be left. This is to ensure that the load
of the pipes and the super imposed load of the earth filling shall be evenly distributed on the bedding.
All precautions shall be taken before the pipes are gradually lowered on the cradle or on firm ground.
After the alignment of pipes is checked and the joints are made and tested, the grouting shall be done.
The saddle concrete shall be allowed to set at least for three days, before any pipes are placed in it
and the contractor shall take due care in setting the pipe in the saddle so that no damage to the
saddles shall occur. If any damage to the saddle occurs, it shall be rectified or removed and replaced
as decided by the Engineer-in-charge.
6.3.3 The back filling shall be compacted up to 600mm above the crown of the pipe in 250mm layers.
6.3.4 The joints for the pipes shall be made by loose collars. The collars shall be specially roughened inside
to provide a better grip. Two adjacent pipe ends will be so designed and manufactured that when
butted together concentrically a dowel will be left between the two ends. In this dowel, cement mortar
of 1:1 proportion shall be filled and the collar shall then be adjusted over the pipe so that its ends are
equidistant from the pipe ends and is concentric with the pipe. The space between the collar and the
outer barrel of the pipe can then be caulked with bitumen soaked hemp yarn in layers at least upto 50
mm (and not exceeding 80 mm) from the joint on either side. The remaining space on either side of
the joint upto the collar shall then be caulked with a stiff mix of cement sand mortar 1:1 with water
proof compound. Every joint shall be finished smooth at an angle of 45o with the longitudinal axis of
the pipe on either side of the collars. The interior of the pipe drains shall be cleared off all dirt, cement
mortar and superfluous materials.
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6.4 CI pipes
6.4.1 CI pipes, low pressure or LA class, shall be laid same as the concrete pipes on saddles and grouted and back filled after the joints are made and tested generally as specified for the concrete pipes.
6.4.2 All spigot and socket joints shall be lead caulked either with molten lead or lead wool. A bitumen soaked spun yarn gasket shall be first caulked into place before pouring in molten lead in one continuous pour or caulking in lead wool. Caulking should be done with a pneumatic tool or with a 2 kg (minimum) hand hammer. Lead run joints shall be preferably finished 3mm behind the socket face. Spongy or imperfectly filled joints shall be burnt or chiseled out and remade.
6.4.3 The lead joints shall meet the following requirements:
Pipe NB
(mm)
Molten joint Wool joint
Lead
(Kg)
Length
(mm)
Lead
(Kg)
Yarn
(Kg)
80 1.8 45 1.30 0.17
100 2.2 45 1.70 0.23
150 3.4 50 2.41 0.34
200 5.0 50 3.37 0.57
250 6.1 50 4.11 0.74
6.5 Making connections
6.5.1 Contractor shall connect the new sewer line to the existing manholes by cutting the walls, benching
and restoring them to the original conditions. A new channel be cut in the benching of the existing
manhole for the new connections. Contractor shall remove all sewage and water if encountered in
making the connection without additional cost.
Permission from municipal authorities to connect the sewer to the municipal manhole and permission
from police for cutting the road for making connection if required shall be obtained by the contractor.
6.6 Foam core pipes Foam core pipes are basically multilayer pipes having outer and inner layers of conventional PVC and
middle layer of foamed PVC. Outer and inner layers are designed to take the load and middle layer of
foamed PVC gives rigidity and maintains the shape of the pipe under load. It reduces total weight of
pipe and makes it light when compared to solid wall PVC pipes.
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Ringfit and Selfit Foam core pipes are available in 110 mm to 315 mm with different stiffness classes
mainly categorised as SN2, SN4 & SN8. SN2 pipes are recommended for above ground applications
while SN4 & SN8 pipes are recommended for below ground applications depending on the level at
which these pipes have to be installed.
Foamcore pipes shall be as per European and International standards published under structure wall
pipes for drainage and sewerage and are mainly based on stiffness classes.
Ringfit pipes are socketed on automatic online socketing machine with very high degree of accuracy.
The socket has groove inside for rubber ring. The rubber ring ensures trouble free water tight joint with
allowance to thermal expansion / contraction. One end of the pipe is plain and other end is self-
socketed with an integral groove to hold the rubber gasket. When joined with a rubber ring, the joint
formed is a trouble free, water tight one, ready to take care of thermal expansion / contraction.
6.7 PVC pipes PVC pipe are available in Ringfit and Selfit PVC pipes conforming to uPVC 4985 & uPVC SWR 13592
are available in 75 mm to 150 mm & 40mm to 450mm respectively.
PVC pipes shall be as per European and International standards published under structure wall pipes
for drainage and sewerage and are mainly based on stiffness classes.
Ringfit pipes are socketed on automatic online socketing machine with very high degree of accuracy.
The socket has groove inside for rubber ring. The rubber ring ensures trouble free water tight joint.
FIRE FIGHTING SYSTEM
SECTION: 2.9
FIRE HYDRANT SYSTEM
1.0 Scope of work
1.1 The scope of work shall cover supply, installation, testing and commissioning of the fire hydrant system
covering the following:
a) Fire pumps, electric or diesel driven as shown in the data sheets and drawings.
b) Booster pumps at terrace or jockey pump, electric driven as shown in the data sheets and drawings.
c) Starters & isolators for the pump sets.
d) Hydrant mains, external ring and yard hydrants.
e) Wet risers in the building as specified and shown on drawings.
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f) Landing valves, hose reels, hose cabinets etc.
g) Fire brigade breaching, Siamese connections and connections to pumps and appliances.
2.0 Standards
2.1 The fire hydrant installation shall conform to and meet with the requirements set out by the following :
1) IS : 13039 - 1991 Code of practice for External Hydrant System - Provision & Maintenance
2) IS 13716 - 1993 Code of Practice for Fire Safety in Hotels
3) IS : 3844 - 1989 Code of practice for installation of internal fire hydrants and hose reel on
premises.
4) Fire Insurance Association of India-Tariff Advisory Committee rules & guidelines.
5) Compliance with the local fire brigade and the fire enforcing authorities.
3.0 Fire Pump
3.1 The fire pump shall be multistage single or double suction centrifugal type with split casing and direct
driven by electric motor or diesel engine as specified. The pump rating and performance shall conform
to the data sheet and meet the TAC duty requirements.
3.2 Pump casing shall be of close grained cast iron with bronze impeller. The shaft sleeve shall be S.S 304
and the trim shall be brass or bronze.
3.3 Pump shall be capable of delivering 150 % of the rated capacity at 65 % of the rated head and the no-
delivery head shall be not more than 140 % (150 % in case of end suction type) of the rated delivery
head. The pump casing shall withstand 1.5 times the no-delivery pressure or 2 times of the duty
pressure whichever is higher.
3.4 The pump shall be either electrically driven or diesel driven with direct flexible coupling.
3.5 The electric drive motor shall be squirrel cage induction conforming to IS 325 - 1996 and rated for
continuous duty (S1). Motor shall have not less than class B insulation and minimum enclosure of
IP22. The starter shall be air cooled fully automatic star delta or auto transformer type. Starters shall
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conform to IS 8544 - 1977 and rated for AC-3 duty. Starter panel shall include an Ammeter with
selector.
3.6 Drive motor rating shall be based on the largest of the following :
1) Rated pump discharge at rated head
2) 150 % of rated discharge @ 65 % of rated head
3) Maximum power absorbed by the pump in its operating range i.e. no-delivery to free discharge.
3.7 The diesel engine shall be naturally aspirated (non-turbocharged) and electrically started. The engine shall
have a speed governor to regulate the rated rpm within 5 % of its rated speed. The engine shall be
etc. Engine rating shall be same as for the electric motor and meet with the performance requirements
of IS 10002 - 1981.
3.8 Engine exhaust pipe shall have a residential duty silencer and insulated with 100 thick 48 Kg/m3
fibreglass finished with 0.5mm thick aluminium cladding. The exhaust shall be left outside the
building as shown in the drg. or as directed.
3.9 A 250 lit. day tank with necessary feed piping shall be provided. The day tank shall be complete with
mounting frame, valved inlet connection with float, overflow, gauge glass and drain. Engine starting
system shall be complete with a storage battery, cranking motor, fuel solenoid valves, battery leads
etc.
3.10 The engine shall have a remote radiator with necessary pipe and electrical connection. The radiator
shall be located outside the pump room at a distance not more than 6m unless shown otherwise in the
drawings.
4.0 Accessories
4.1 The fire and jockey pumps shall be complete with the following accessories:
a. suction and discharge b. eccentric reducers. c. pump coupling guard. d. common base frame, fabricated mild steel or cast iron.
4.2 Each pump shall have independent set of pressure switches. The pressure switch shall be snap action
SP DT switch rated 10A @ 220 V operated through a stainless steel diaphragm. The switch shall have
a pointer for manual adjustment of set point, and all electrical connections shall be terminated in a
screwed terminal connector. The entire unit shall be encased in a cold drawn steel IP 55 enclosure.
The diaphragm shall be designed for a maximum operating pressure of the system. Each pressure
switch shall be provided with a pressure gauge in parallel as shown on the drawings and all gauges
and pressure switches shall be mounted in an instrument panel with necessary control piping and
drainage facility.
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4.3 Flow switches shall be paddle type SPDT snap acting contacts rated 10 A @ 220 V. The paddle shall
be made of either brass or phosphor bronze terminated in a screwed terminal connector. The entire
unit shall be encased in cold drawn steel IP 55 enclosure and the maximum operating pressure of the
parts in contact with the liquid shall be consistent with the system pressure.
4.4 Shut off valves, wherever required, shall be provided with a tamper microswitch 2A @ 220V with
necessary bracket suitable for the valve concerned.
5.0 System Operation and Control Panels
5.1 The fire pump shall be started automatically on loss of pressure and the operation sequence of the
booster and fire pumps shall be as follows :
i) Booster or jockey pump shall start when the system pressure drops by 0.5 Kg/cm2 and stop when the system pressure is re-established.
ii) The fire pump shall start when the system pressure drops by 1.0 Kg/cm2 and shall continue to run till manually switched off.
iii) Booster/jockey and fire pump starting shall be indicated on the panel with a red indication lamp. It should also be indicated on the FACP.
5.2 The motor starters (direct on line or star-delta) shall consist of electrically actuated contactors. The
starter shall be complete with ON-OFF push buttons, timers and auxiliary contacts and shall be fully
automatic. There shall be an indicating lamp with each of the pumps and an ammeter and selector
switch with the fire pumps. Fire pump starting shall be annunciated through an electric siren and the
pump shall be capable of being started remotely.
5.3 The starter along with isolator shall be housed in a 2.0mm M.S box duly rust inhibited through a
process of degreasing and phosphating.
5.4 All cabling to starter and control switches shall be carried out through armoured PVC FRLS cables of
approved makes. Cables shall be laid in accordance with section “M V CABLING”. Cabling from
starter or switch to the motor shall be through LAPP steel braided flexibles of PVC FRLS cables. The
pump motors and panels shall be earthed in accordance with IS 3043-1966 or as shown on
drawings.
6.0 Fire Hydrants, & Hose Reels
6.1 Hydrants shall be provided internally and externally as shown on the drawings. Internal hydrants shall
be provided at each landing of and escape staircase and additionally depending on the floor area as
shown on drawings. Landing valve shall be twin headed gun metal valve with 2-63 mm dia outlets and
100 mm inlet conforming to IS 5290-1998. Landing valve shall have flanged inlet and instantaneous
type outlets and mounted at 1.0 m above the floor level. Instantaneous outlets for fire hydrants shall
be of standard pattern approved and suitable for 63 mm dia fire brigade hoses. Wherever necessary,
pressure reducing orifices shall be provided so as to limit the pressure to 5.5 kg/sqcm or any other
rating as required by the local fire brigade.
6.2 Internal Hydrants
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6.2.1 Each landing valve shall have a hose reel cabinet of 1800 x 900 x 450 mm housing or as shown on
drawings.
i) Landing valve with twin 63 mm dia capped outlets and one 100 mm inlet with a pressure gauge cock.
ii) An orifice plate (S.S 304) assembly with flanges wherever necessary for pressure reduction.
iii) First-aid hose reel with 30 m long 20 mm dia high pressure dunlop hose & 20 mm dia gate valve.
iv) 2-7.5 m long 63 mm dia flax canvas controlled percolation hoses with instantaneous couplings. i) One copper branch pip with bronze rings to take the nozzles at one end and fit into the
instantaneous coupling at the other. ii) One leaded-tin-bronze nozzle of 25 mm dia.
6.2.2 The first aid hose shall conform to IS 884-1969 and be wound on a heavy duty circular hose reel with a
cast iron bracket. The hose shall be permanently connected on one end to the standpipe through a 20
mm G.M gate valve with necessary hose adapter and a gun metal nozzle at the other end. The reel
shall swing out by 270o.
6.2.3 Canvas hoses shall be in two lengths of 6.5 m each, of unlined flax or controlled percolation type with
instantaneous couplings, neatly rolled into bundles and held in position with steel brackets. Canvas
hoses shall be tested and certified by the manufacturers, to withstand an internal water pressure of
not less than 35 kg/sqcm without bursting. The hose shall also withstand a working pressure of 6
kg/sqcm without leakage or undue sweating.
6.2.4 The hose cabinet shall be fabricated from 2 mm mild steel sheet duly rust inhibited through a process
of degreasing and phosphating The cabinet shall have double flap hinged doors with 4 mm clear glass
and shall have necessary openings for riser main and brackets for all internals. The cabinet shall
receive two coats of red oxide primer both inside and outside before two after coats of final paint of
approved colour shade.
6.3 External Hydrants
6.3.1 External Hydrants shall be stand post type over-ground unless shown otherwise. All external hydrants
shall be 80 mm C.I butterfly valve. Hydrants shall be located at least 2 m away from and within 15 m
from the building wall.
6.3.2 Each hydrant shall be provided with a hose cabinet containing 2 x 15 m 63 dia unlined flax or
controlled percolation hoses with couplings. Wherever shown, the cabinet may contain a branch pipe
and nozzle. The cabinet shall be 900 x 600 x 400 fabricated out of 2 mm mild steel sheet duly rust
inhibited through a process of degreasing, phosphate etc. The cabinet shall receive two coats of red
oxide primer, inside and outside, before 2 coats of final painting of approved shade. The cabinet shall
be wall-mounted or free standing with its own steel legs depending on the site conditions and as
shown on drawings.
6.3.3 Alternatively the hoses can be centralised in hose cabinets meeting the requirements.
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6.4 The fire brigade connection shall consist of one or two twin-headed 63 mm dia gun metal outlets with
built-in check valve and drain plugs connected to a 150 mm dia outlet connection to the water reservoir
or to the hydrant main. The fire brigade collecting head shall conform to IS 904-1983.
7.0 Piping
7.1 All piping shall be as specified under “PIPING FOR FIRE FIGHTING” and the schedule of work for piping.
8.0 Test & Commissioning
8.1 All hydrant piping shall be tested for a hydrostatic test pressure of 20 kg/sqcm or 1.5 times the casing
pressure of the pump for a period of 24 hours at the end of which there shall be no loss in pressure.
8.2 The booster & fire pump starting and stopping shall be tested by opening the test valve and record the
following:
1) Booster pump start / stop
System pressure at start up : kg/sqcm
Stop : kg/sqcm
Time elapsed from start to stop = seconds
2) Hydrant Pump start
System pressure at start up : kg/sqcm
Maintained system pressure while
discharging the landing valve at the highest
point.
i) pump end : kg/sqcm
ii) highest outlet : kg/sqcm
iii) intermediate points : kg/sqcm
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8.3 All the operating tests shall be carried out in the presence of any local authority, Fire Brigade or Insurance
Co. Pressures obtaining at each landing valve shall be tested and recorded. Wherever excessive
pressure is recorded, the orifice plates shall be replaced.
9.0 Makes or Materials
9.1 All materials and equipment used shall be approved products of the Tariff Advisory Committee and ISI
stamped. The list of makes of materials below is indicative of the quality standards expected.
10.0 Mode of Measurement
10.1 Hydrant pump with mounting frame, excluding concrete foundation shall be measured per unit.
10.2 Engine driven pump complete with:
i) mounting frame ii) flexible coupling iii) engine starter panel with starting battery charger, leads etc. iv) day tank v) exhaust pipe and insulation, silencer etc. vi) remote radiator etc. as specified.
10.2 Booster pump same as Hydrant pump.
10.3 Instrument panel with pressure gauges, pressure switches, control piping, enclosure etc. shall be
measured as one unit.
10.4 Landing valves with fire hose cabinet with hose reel, rubber line hose, canvas hose, branch pipe, axe,
nozzle etc. shall be measured per unit.
10.5 External hydrant stand post type with butterfly valve or sluice valve with tail pieces, etc. shall be
measured per unit.
10.6 Fire brigade inlet connection complete with 1 or 2 nos. 63 dia twin head inlets with non-return valve
with 100 or 150 dia respectively of inlet pipe atleast 1.5 m long shall be measured per unit.
10.7 External Hose reel boxes complete with hoses and enclosure etc. shall be measured per unit.
10.8 Control cabling from pressure gauge panel to the respective starters shall be measured in running
metre and paid at unit rates.
10.9 Starter and isolator for each pump housed inside the M.S box shall be measured as one unit and paid.
SECTION: 2.11
PIPING FOR FIRE FIGHTING
1.0 Scope
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1.1 The scope of work covers, supply, laying, testing and commissioning of the entire piping system for
the Fire Fighting Installation ie. Fire Hydrant and sprinkler systems.
2.0 Standards
2.1 The following standards shall be applicable:
i) IS 1239 Mild Steel Tubes & Tubulars
and fittings
ii) IS 1879 Malleable iron fittings
iii) IS 778 Gun Metal gate, globe and
check valves
iv) IS 1537 Vertically cast iron double
flanged pipes
v) IS 7181 Horizontally cast double
flanged pipes.
All standards should be the latest.
3.0 Hydrant Mains
3.1 External
3.1.1 Underground external mains shall be either
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a) Double Flanged class A pipes conforming to IS 7181 or to 1537 upto 300 mm dia or 7.0 kg/sqcm
pressure.
b) For sizes higher than 300 mm or 7.0 kg/sqcm pressure pipes to IS 1537 shall be class B. There shall
be no change in class, in respect of pipes to IS 7181.
c) Ductile iron or mild steel pipes ERW conforming to IS 1239 upto 150mm. Pipes of 200 mm and over
shall be factory fabricated ERW pipes to IS 3589 or BS 3601.
3.1.2 Where the cast iron double flanged pipe diameter exceeds 300 mm and system pressure is more
than 7 kg/sqcm, class B pipes shall be used. Cast iron pipes shall use only cast iron fittings
conforming to IS 1538. All flange joints shall be designed for a pressure rating of 2.0 N/sqmm and
joints shall use high tensile bolts with 3mm fibre reinforced teflon gasket. Pipes shall be given one
coat of hot bitumen before being laid in position.
3.1.3 Galvanized steel pipes, when laid underground, shall be protected against corrosion by two coats of
hot bitumen and two wraps of fibreglass tissue over the entire lengh including fittings & valves.
Fittings shall be weldable wrought iron fittings suitable for butt welding and 10% of the welded joints
shall be radio-graphically tested and found in order. The welded joints shall be random selected for
testing in consultation with the Engineer. All flanges shall be slip-on welded flanges to IS 6392 with a
3mm fibre-reinforced teflon gasket and rated for 2.0 N/sqmm.
3.1.4 Valves 65 mm dia and below shall be heavy duty gun metal full way gate valves or globe valves
conforming to IS 778 - 20 Kg/sqcm class. Valves shall be tested at manufacturer’s works and ISI
stamped. Sluice valves above 80 mm shall be cast iron double flanged, with rising spindle
conforming to and stamped to ISI 780-20 kg class. Exposed valves shall be provided with wheel for
operation and underground valves cap-tops. Contractor shall provide suitable operating keys for
sluice valves with tops.
3.1.5 Underground mains shall be laid not less than 750 mm below the ground level and shall be atlest 2m
away from the building face and supported on concrete pedestals at every 3.5 m and held on with
galvanised iron clamps. Concrete thrust anchors shall be provided at all bends and tees as shown on
drawing and as directed. All excavation for pipe laying shall be carried out with sufficient width for
making proper joints. Backfilling shall be done only after the piping is hydro-statically pressure tested.
Piping shall be constantly kept clean till tested.
3.1.6 All valves shall be housed in brick masonry chambers over 150 mm cement concrete (1:3:6)
foundation. The brick walls of the chamber shall be plastered inside and outside with 20mm cement
sand plaster 1:4 with a floating coat of neat cement. Chambers shall be 650 x 650 mm clear for
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depths upto 900 mm and 1000 x 1000 mm for depths beyond. Each chamber shall have a cast iron
surface box approved by the local Fire brigade.
3.1.7 Piping laid above ground shall be supported on cement concrete (1:3:6) pedestals raising the bottom
of the pipe at least 150 mm over the ground level and held to the pedestals with galvanised clamps.
Pedastals shall be made at 3.0 m centre to centre and as shown on drawings. Cement concrete
1:3:6 thrust anchors shall be provided at all tee-off points and change of direction as shown on
drawings and as required. Pipes laid on walls and ceiling shall have galvanised steel brackets.
3.2 Internal
3.2.1 All internal pipes shall be, unless otherwise specified, heavy quality galvanised mild steel tubes to IS
1239 using wrought G.I steel heavy duty screwed fittings. Flanges shall be provided to mate with
valves and other equipment and shall conform to IS 6392. Flanges shall be screwed type. Flanges
shall be rates for 2.0 N/sqmm.
3.2.2 All fittings for sprinkler piping shall be extra heavy duty galvanised M.S screwed type suitable for the
pressure encountered in sprinkler piping. All tap-offs from vertical riser to floor piping shall have
flange or union connections. All flow switches shall have flanges or unions on both sides.
3.2.3 Valves shall be as for external piping.
3.2.4 All pipes shall be of approved make and best quality without rust marks. Pipes and fittings shall be
fixed in a manner as to provide easy accessibility for repair and maintenance and shall not cause
obstruction in shafts, passages etc. Pipes and fittings shall be fixed truly vertical horizontal or in
slopes as required in a neat workmanship manner. Pipes shall be securely fixed to walls and ceilings
by suitable supports at intervals specified. Only approved type of anchor fasteners shall be used for
RCC ceiling and walls.
3.2.5 All pipes shall be adequately suppoted from ceiling or walls through structural supports fabricated
from mild steel structurals e.g. rods, channels, angles and flats generally as shown on drawings.
Fasteners shall be shear type anchor fasteners in concrete walls and ceilings and wrought steel
spikes of atleast 75mm long in brick walls. All pipes supports shall be painted with 1 coats of red
oxide primer and two coats of black enamel paint. Pipe supports shall be as follows:
Upto 50 mm nominal bore 1.75m
63 mm to 100 mm nominal bore 2.0 m
Over 100 mm nominal bore 2.5 m
3.2.6 All low point loops in the piping shall be provided with 25mm gun metal full-way valves with rising
spindle for drain ing the system. All valves shall have screwed brass caps. Likewise 25mm gun
metal air vents shall be provided at all high point loops to prevent air-locking.
3.2.7 All piping shall have flanged joints at about 25m intervals to facilitate easy maintenance.
3.3 Painting
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3.3.1 All exposed piping for fire fighting shall be distinctly painted ‘Fire Red’ shade 536 to IS:5-1978. Pipes
shall first receive two coats of red oxide primer uniformly applied and two coats of oil paint applied
thereafter. All pipes supports shall be painted black as specified for support & clamps.
4.0 Testing & commissioning
4.1 All piping after installation shall be tested for a hydrostatic test pressure of 20 Kg/Sqcm maintained for
24 hours. All joints and valves shall be checked for leaks and rectified and retested. During testing
all valves except drain & air valves shall be kept fully open.
5.0 Mode of measurement
5.1 All external piping shall be measured along the centre line of the pipe and paid per unitlength and
shall include:
i) All pipes & fittings
ii) Bituminous coating
5.2 All internal piping shall be measured similarly but shall include for the pipe supports and clamps
instead of excavation.
5.3 All valves, air valves, drain valves together with flanges or tail pieces shall be measured per unit.
5.5 All excavation and concrete supports and thrust blocks shall be measured as per drawing and paid
for per cum.
SPRINKLER SYSTEM:
1) Wet-pipe System: Wet-pipe sprinkler systems are the most common in use today. These systems contain water under pressure to each individual sprinkler head. When a head is exposed to a pre-determined temperature, the fuse or link will break and water will begin to flow. 1.2 Internal
1.2.1 All internal pipes shall be, unless otherwise specified, heavy quality galvanised mild steel tubes to IS
1239 using wrought G.I steel heavy duty screwed fittings. Flanges shall be provided to mate with
valves and other equipment and shall conform to IS 6392. Flanges shall be screwed type. Flanges
shall be rates for 2.0 N/sqmm.
1.2.2 All fittings for sprinkler piping shall be extra heavy duty galvanised M.S screwed type suitable for the
pressure encountered in sprinkler piping. All tap-offs from vertical riser to floor piping shall have
flange or union connections. All flow switches shall have flanges or unions on both sides.
1.2.3 Valves shall be as for external piping.
1.2.4 All pipes shall be of approved make and best quality without rust marks. Pipes and fittings shall be
fixed in a manner as to provide easy accessibility for repair and maintenance and shall not cause
obstruction in shafts, passages etc. Pipes and fittings shall be fixed truly vertical horizontal or in
slopes as required in a neat workmanship manner. Pipes shall be securely fixed to walls and ceilings
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by suitable supports at intervals specified. Only approved type of anchor fasteners shall be used for
RCC ceiling and walls.
1.2.5 All pipes shall be adequately suppoted from ceiling or walls through structural supports fabricated
from mild steel structurals e.g. rods, channels, angles and flats generally as shown on drawings.
Fasteners shall be shear type anchor fasteners in concrete walls and ceilings and wrought steel
spikes of atleast 75mm long in brick walls. All pipes supports shall be painted with 1 coats of red
oxide primer and two coats of black enamel paint. Pipe supports shall be as follows:
Upto 50 mm nominal bore 1.75m
63 mm to 100 mm nominal bore 2.0 m
Over 100 mm nominal bore 2.5 m
1.2.6 All low point loops in the piping shall be provided with 25mm gun metal full-way valves with rising
spindle for drain ing the system. All valves shall have screwed brass caps. Likewise 25mm gun
metal air vents shall be provided at all high point loops to prevent air-locking.
1.2.7 All piping shall have flanged joints at about 25m intervals to facilitate easy maintenance.
1.3 Painting
1.1.1 All exposed piping for fire fighting shall be distinctly painted ‘Fire Red’ shade 536 to IS:5-1978. Pipes
shall first receive two coats of red oxide primer uniformly applied and two coats of oil paint applied
thereafter. All pipes supports shall be painted black as specified for support & clamps.
SPRINKLER HEADS
The sprinkler heads shall be UL and FM listed approved fixed temperature type with a quartzoid bulb
containing liquid having high vapor pressure held in position by a forged GM yoke and deflector. The
rated temperature of quartzoid bulb shall be 68 deg. C. boiler room and kitchen shall be of 141 deg.The
spacing shall however conform to the detailed drawing, in Co-ordination with electrical and other allied
services at the ceiling level. Sub-contractor shall supply spare sprinkler heads and spanners neatly
installed in a steel box with glass shutter at an appropriate position approved by the Engineer-in-
Charge.
A water motor gong and an inspection test connection shall be provided on the down streamside of the
system.
Sprinklers for below false ceiling shall be fixed with recessed (two piece) type Rosette plate fabricated
by M.S. sheet of 2mm thick with Powder coated finish of approved color.
2.0 Testing & commissioning
2.1 All piping after installation shall be tested for a hydrostatic test pressure of 20 Kg/Sqcm maintained for
24 hours. All joints and valves shall be checked for leaks and rectified and retested. During testing
all valves except drain & air valves shall be kept fully open.
3.0 Mode of measurement
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3.1 All external piping shall be measured along the centre line of the pipe and paid per unitlength and
shall include:
i) All pipes & fittings
ii) Bituminous coating
3.2 All internal piping shall be measured similarly but shall include for the pipe supports and clamps
instead of excavation.
3.3 All valves, air valves, drain valves together with flanges or tail pieces shall be measured per unit.
3.5 All excavation and concrete supports and thrust blocks shall be measured as per drawing and paid
for per cum.
Section: 2.12
PORTABLE FIRE EXTINGUISHERS
1.0 Scope
1.1 The scope of work covers the supply and installation of Portable Fire Extinguishers. The following
types are envisaged in these specifications and provided as shown in the schedule of portable Fire
Extinguishers.
a. Soda Acid type chemical extinguisher b. Dry powder extinguisher c. Carbon-dioxide extinguisher d. Halon 1211 extinguisher
2.0 Standards
2.1 The following standards and rules and regulations shall be applicable:
i) Fire Protection Manual of the Tariff Advisory Commitee, Fire Insurance
Association of India.
ii)
iii)
IS: 2176 : Portable Fire Extinguisher
Dry Powder type
IS: 2878 : Portable Fire Extinguisher
Carbon-dioxide type
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iv)
v)
IS: 11108 : Portable Fire Extinguisher
Halon 1211 type
Local Fire Brigade
2.2 All standards mean the latest.
3.0 Extinguishers
3.1 Dry Powder type
3.1.1 The extinguishers shall be 2, 5, 10 kg capacity and cartridge type unless specified otherwise.
3.1.2 The body shall be of cold rolled carbon steel Grade D and 1.5 mm thick upto 5 kg and 2 mm for 10 kg.
The construction shall be similar to ‘Soda Acid type’ but of the following dimensions:
Capacity
(Kg)
Outside dia
(mm)
Filler opening
(mm)
2.00
5.00
10.00
100
150
175
45
45
45
3.1.3 The discharge fitting shall be fitted with 500mm 10 mm dia hose up to 5 kg and 750 mm 12.5 mm dia
for 10 kg with a trigger controlled nozzle capable of discharging 85% of the contents as follows:
Capacity
(Kg)
Time
(sec)
Throw
(m)
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2.00
5.00
10.00
8 - 10
15 - 20
23 - 30
2
4
6
3.1.4 A Carbon dioxide cartridge conforming to IS:4947 shall be fitted in a cartridge holder with an inner
shell. A spring loaded piercing device shall be provided in the cap for piercing the seal of the gas
cartridge. A syphon tube of copper or PVC shall be provided for upright operation. The cap and neck
ring shall be similar to Soda Acid type extinguisher.
3.1.5 All internal and external components and surfaces shall receive anti-corrosive coating of not less than
12 microns shall be applied uniformly as indicated below:
i) Body Mild Steel Tin alloy
ii) Cage for acid
bottle and spring
Brass sheets Lead or
Tin alloy
iii) Discharge fittings Leaded - Tin
bronze
Tin alloy
iv) Strainer Brass sheets Lead or
Tin alloy
3.2 Carbon Dioxide type
3.2.1 The extinguishers shall be rated for 2.0, 3.0 and 4.5 Kg by weight or Carbon dioxide, unless stated
otherwise. The contents shall be with a filling ratio not exceeding 0.667.
3.2.2 The body shall be steel cylinder made according to IS:2872 and approved by the Chief Controller of
Explosives.
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3.2.3 The discharge head shall be simple and safe to operate conforming to IS: 3224 with a safety release
to IS : 5903 set to 18.0 to 20.0 N/sqmm. A syphon tube of copper or PVC shall be fitted. A non-
conducting discharge horn and a high pressure hose (27.5 N/sqmm pressure) shall be fitted with each
extinguisher.
The discharge system shall be designed to expel 95% of the contents in continuos discharge as
follows:
Capacity Time
(Kg) (Sec.)
2.0 8 - 18
3.0 10 - 20
4.5 10 - 24
3.3 Mono Ammonium Phosphate type
3.3.1 The capacities envisaged are 2 & 5 Kg. The filling pressure shall be 0.95 +/-0. 055N/sqmm.
3.3.2 The body shall be cylindrical in shape and made of cold rolled carbon steel grade D/DD or hot rolled
steel plate with radiographically tested welded construction. Plate thickness shall conform to IS:11108.
3.3.3 Discharge valve mechanism shall be a simple and safe squeeze grip valve. 4.5 Kg and above
capacity shall have a high pressure (5.0 N/sqmm) hose and non-conducting horn and shall
also be provided with a pressure gauge. 95% of the contents shall be discharged as follows:
Capacity
(Kg)
Time
(sec)
Throw
(m)
2.00
5.00
8 - 16
15 - 24
2
4
3.3.4 The internal and external components and surface shall be treated for anti-corrosion as for dry
powder type extinguishers.
3.4 General requirements
3.4.1 All extinguishers shall be Standard products approved by the Tariff Advisory Committee and Local Fire
Brigades and manufactured and tested strictly in accordance with the relevant Indian Standard. All
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markings and test results shall be stamped in the appropriate colour markings according to the Indian
Standards.
3.4.2 All extinguishers shall have a structurally designed galvanised steel handle and also a suitable wall
mounting bracket.
3.5 Mode of measurement
3.5.1 Each extinguisher with its mounting bracket shall be measured per unit and paid for.