Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. इंटरनेट मानक “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda “Invent a New India Using Knowledge” “प0रा1 को छोड न’ 5 तरफ” Jawaharlal Nehru “Step Out From the Old to the New” “जान1 का अ+धकार, जी1 का अ+धकार” Mazdoor Kisan Shakti Sangathan “The Right to Information, The Right to Live” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता ह ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 10007 (1981): Lifeboats' Steel Blocks [TED 19: Marine Engineering and Safety Aids]
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Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public.
इंटरनेट मानक
“!ान $ एक न' भारत का +नम-ण”Satyanarayan Gangaram Pitroda
“Invent a New India Using Knowledge”
“प0रा1 को छोड न' 5 तरफ”Jawaharlal Nehru
“Step Out From the Old to the New”
“जान1 का अ+धकार, जी1 का अ+धकार”Mazdoor Kisan Shakti Sangathan
“The Right to Information, The Right to Live”
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता है”Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”
“Invent a New India Using Knowledge”
है”ह”ह
IS 10007 (1981): Lifeboats' Steel Blocks [TED 19: MarineEngineering and Safety Aids]
IS : 10007 - 1981
SPECIFICATION FOR LIFEBOATS’ STEEL BLOCKS
Marine Instruments and Safety Aids Sectional Committee, MCPD 4
Chairman Representing
CAPT P. S. VANCIZI~WAW Directorate General or Shipping. Bombay
Members CAPT S. B. AGA Fricson dt Richards, Bombay CAPT N. N. BHANSAL~ The Company of Master Mariners of India,
Rombay SHRI A. K. CHOPKA lndian Reqlster of Shipping, Bombay DEPUTY L)IRECTOR m W~..WOXS Mmrstry 6f Defence ( NHQ 1 SHI<I P. R. GOVIL Cochin Shipyard Ltd, Cochin
SHHI P. J. C. SERLNO ( A/lernrrfe ) SHRI VIRENDRA SAIN ( Mer.nnfe I
CMDE HARUAY 4~ SINGIL Directorate of Standardization ( Ministry of Dcfence ) DGI ( N )
SH!~I J. L. BHAROAVA ( Altetnute ) CAPT I_ 13. HAXAI<I The Shipping Corporation of India Ltd. Bombay
CAPT G. C. RAO ( Altermre ) RRpar.sEN.rA’rIvE Indian National Shipowners’ Association, Rombay SIIKI R. ROY CI-IOWI>HLJKY Calcutta Port Trust, Calcutta SHRI I’. A. SFIAPARIA Shaparia Dock & Steel Co Pvt Ltd. Bombay
SHRI C. N. MIS-r~tu ( Alteinute ) SHKI K. SOUNI)HIKAKA.IAN Directorate General of Technical Development,
New IIelhi SHRI S. SRINTVASAN Hindusran Shlpyard Ltd, Vishakhapatnam
SHRI B. KIIISHYAPPA ( Alternate ) Gr CAPT 0. I’. TANLJA I-:. W. Stevens & Co Ltd. Madras SHRI P. S. DAS. Director General. ISI ( Ex-officio Member )
Director ( MCPD )
Secretary SI~ICI V. K. SEHOAL
Deputy Director ( Marrne )? ISI
( Continued on page 2 )
INDTAN STANDARDS INSTITUTION
This publication is protected under the Indion Copvrinht Act ( XIV of 1957 ) and
reproducfion in whole or in part by any means except with written permission of the
publisher shall be deemed to be an infringement of copyright under the said Act.
IS : 10007 - 1981
( Conrimed from pure 1 )
Lifeboats, Liferafts and Launching Gear Subcommittee, MCPD 4 : 2
Convener Representing
sHR1 D. B. IRAN1 Directorate General of Shipping, Bombay Afembers
SHRI P. K. BANIXJCE ( Alrcrnatc lo Shri D. B. Irani )
SHRI R. G. SIWH ( AIlernnla to Shri D. B. lrani )
SHRI S. Y. BANAVLIKAR. SHRI Y. S. MARATIIE ( Alternote )
Swastic Rubber Produ:ts Ltd. Bombay
CAPS N. N. BHANSAL~ The Company of Master Mariners of India. Bombay
DIRECI.OK OF NAVAL. CONSTRUCTION Ministry of Defcnce ( NHQ ) SHIU P. N. GH~SH Ministry of Defcnce ( R Sr I) )
SIIRI A. K. SUKI ( Alfernole ) SIJRI S. GOIJALAN Acre Marine Tndustrics Pvt Ltd. Madras
SHRI T. M. GWINDAN ( Alternnte ) CAP-r K. V. HORA Meridian Inflatables Pvt Ltd. Bombav
Cwr S. K. CIIATTERJ~E ( dlrerrrnre ) !%RI J. K. NANUA Geeta L:ngincering Works Pvt Ltd. Bombay
SI+IU S. K. BATRA ( A!fernnte ) SHM P. A. SIIAPARIA Shaparia Dock Sr Steel Co Pvt Ltd, Uombay
SHHI C. N. MISIKY (Al&male ) SW S. K. SINHA Garden Reach Shipbuilders &. Engineers Ltd,
Calcutta SIIRI A. K. JOARUAR ( Alfernate )
CAPI‘ V. SUIWAMANIAN Tbc Shipping Corporation of India Ltd, Bombay CAPT V. C. MINOCHA ( AIkwtafe )
CAPTH. II. WAUIA Institute of Marine Technologists, Bombay SI~KI V. G. DAMLI! ( Almna/e ) Stitu A. T. JOSEPH ( A~mxnl~ ) C,.wt 1’. S. I~AKv~: ( AIlrrnure )
2
IS : 10007 - 1981
Indian Standard SPECIFICATlON FOR
LIFEBOATS’ STEEL BLOCKS
0. FOREWORD
0.1 This Indian Standard was adopted by the Indian Standards Institution on 30 October 1981, after the draft finalized by the Marine Instruments and Safety Aids Sectional Committee had been approved by the Marine, Cargo Movement and Packaging Division Council.
0.2 Lifeboats’ steel blocks arc used with the luffing type boat davits.
0.3 Statutory authorities/classification societies have their own regulations for the construction and testing of lifeboats’ steel blocks used on board ships. These rules take into consideration the latest IL0 Code of practice of safety and health in dock work.
0.4 In the preparation of this standard, assistance has been derived from JIS F 3420-1977 Lifeboats’ steel blocks, issued by Japanese Industrial Standards Committee ( JISC ).
0.5 For the purpose ol’ deciding whcthcr a particular requirement of this standard is complied with, the final value, observed or calculated, express- ing the result of a tcjt or analysis, shall be rounded off in accordance with IS : 2-1960*. The number of significant places retained in the rounded 011 value should be the s3mc as that of the specified value in this standard.
1. SCOPE
1.1 This standard specifies the material, dimensions for the various types and pJrts for lifeboats’ steel blocks for use with the luffing type beat davits.
2. DESCRIPTION
2.1 Lifeboats’ steel blocks consist of the following parts:
a) Sheave b) Cheeks c) Supporting straps d) Axle pin
*Rules for rounding olr numerical VakS ( wciscd ).
3.0 For the purposr of this standard, the following definitions shall apply. 3.1 Cheeks -~-- Checks arc the side plates fitted on either side of the sheave. 3.2 Safe Working Load - The maximum permissible load in tonnes for the rope of one of the single sheave blocks to take on one end. 3.3 Nominal Size --The diameter of the sheave in millimetrcs is the nominal size of the block.
4. MATERIAL
4.1 The material used for the various parts of the block shall be as indicated below:
Name oj Pm-t Matrriul Cmfhming f0
a) Sheave
b) Hush for shcavc c) Cheeks
d) Supporting strap
e) Axle pin
f) Swivel g) Beckets
h) Thimbles
IS : 186.5-1974+ Grade 3 B
IS : 2107-1977.t IS : 210%1977: IS : 1570-1961~ Grade CZO rs : 1030-1974;~ IS : 315.196711 lS : 1570-19615 Open hearth steel, fully
killed 01‘ Ci 5 grade TS : I570-I9hI$ Open hearth steel, fully
kiilcd c f C 1 S grade IS : 1570-1961s Open hearth steel, fully
killed of C15 grade [S : 1570-19615 Grade C20 IS : 1570-19hIS Open hearth steel, fully
killed of Cl5 grade IS : 1570-1961~ Grade Cl5 Mn 75
*Iron castings with spheroidal or nodular graphite ( scamd revision ). tSpecification for whitcheart malleable iron casiings ( /irsr revi.sim ). $Specification for blackheart mnlleablc iron castings ( firs, tmisijm ). gkhedulcs for wrought ~tccl fur general cngincering purposes. IlCarbon steel castings for gcncral cnginxring purposes ( secord revision 1. 1jSpccification for lcadcd fin bronze ingots and castings ( revised ).
IS : 10007 - 1981
5. CLASSIFICATION
5.1 The blocks shall be classified as given in Table 1.
iAL 180 210 240 Ins 180 2io 240 IUL I HI 210 240 2AL 1 x0 210 240 ZAS IhO ‘IO 2-u 213s 180 210 240
NQli! I The digits 1 and 2 in the Type rcprescnt (he number of shcsvcs.
N~‘IF 2 .-- The second letter A in the Type rcprcscnts the blocks without bccket and B with bcckct.
Norr.~ ~I~lx third Icttcr L in the Type rcprcscnts the blocks with links and S with shackI<:;.
6. CONS’P‘RUCTION, SHAPE AND DIMENSIONS
6.1 The construction, shape and dimensions shall conform to Tal:lcs 2 to 8 and shall colrform to the following requirements:
Grease CLIPS conforming to IS : Xi72-196X’k may bc used in place of grcasc nipples conforming to IS : ~1009-1967~; Split pins conforming to IS : 549-19741;
Shackles used for types lBS, 2AS and 2BS conforming to IS : 6132- 1971s;
4 Thimble used for types lRS, LBL and 2BS conforming to IS : 2315- 197511; Cheeks may be provided with a rubbing p!ate to pro&t the rope; Cheek and fork may be secured by countersunk head bolt or rivet;
Swivel pqrt shall be so constructed as to be lubricated with oil or grease; and
h) Screw threads on swivel part shall conform to iS : 321%197611.
*Specification for grcasc cups. tSpecificafion for grease nippics. $Specific~ition for split pins ( sei,vzd revision ). $Specification for shackles. IlSpecification for thimbles for wire ropes ( first m~i.hn ). ~;Speclficntion for IS0 metric screw threads.
5
LS:10007-1981
7. TESTING
7.1 The blocks as a whole covered by this standard shall be individually tested in static condition to a proof load of 2.5 times the safe working load of the blocks as shown in Table 9. The proof loads and the safe working loads corresponding to the nominal size of the blocks are also indicated in Table 9. The test load shall be maintained for a period of 5 min.
7.2 At the end of the test, the blocks shall be checked for free rotation, then opened and all parts examined for permanent deformation or other defects in any of the parts. The blocks shall be approved subject to there being no permanent deformation on any of the parts.
8. DESIGNATION
8.1 The blocks shall be designated by their typ?, nominal diameter and this Indian Standard.
Example :
A lifeboats’, steel blcck of type IAL and nominal dia 180 mm shall be designated as:
Lifcboa:s* Steel Fl:)ck IAL, IS0 TS : 10307
9. MARKING
9.1 All lifcbcats’ stetl blocks shall bc. marked on the strap in an indelible manner with the following:
a) The manufacturer’s identification mark,
b) Nominal size,
c) Safe working load, and
d) The inspecting authority’s seal with date of test.
9.1.1 Lifeboats’ steel blocks may also be marked with the ISI CertiBca- tion Mark.
NATE - The use of the ISI (‘erlificalion Mark is governed by the orovisions of the Inhian Standards Institution ( Ccrlification Marks ) Act and th; Ruies and Regula- tions made thereunder. 7%~ ISI Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of rhat standard under a well-defined svstem of inspection, testing and quahty control which is devised and supervised by ISI and operated by the producer. ISI marked products are also continuously checked by IS1 lor conformity to that standard as a furtller safeguard. Details of conditions under which a i::cnce for the use of the ISI Certification Mark may be granted to manufacturers or processors, may bs obtained from the Jndian Standards Institution.