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1S:4128 ● 1980
Indian StandardSPECIFICATION FOR
FIREMAN’S LEATHER BOOTS
(First Revision )Footwear Sectional Committee, CDC 40
Chairman Representing
SEBI N. R. LODE The National Small Industries Corporation Ltd,Madras
Members
SHRI B. .S. AMBALY Tamil Nadu Small Industries Corporation, MadrasSmtI P. L. BANESSJEE Glace Kid ( India ) Pvt Ltd, CalcuttaSHRI A. T. BASAK Directorate General of Supplies and Disposals,
New DelhiSHRI P. F. MILLEB ( Alternate )
SHRI SUNIL KWMARBEADBA Bata India Ltd, CalcuttaSERI M. PABRAB ( Alternate
Indian Leather Technologists” Association, CalcuttaDirectorate General of Technical Development,
New Delhi
SHEUGOPAL LAL GHOSHSHRI R. S. GEOSE
SHRI J. S. BISET ( Altemat#SHRXN. KANNAN
SERI B. B. DAS ( Ahrnat6 )SHRI M. S. KOHLISERI K. S. MATHEW
Ministry of Defencc ( R & D ) ‘
Leather Linkers, AgraDepartment of Civil Supplies and Cooperation
( Ministry of Industry and Civil Supplies )SHRI R. S, RAWAT( Afternate )
SHRI V. K. MWRTEXY Standing Committee on Safety for the SteelIndustry, Durgapur
SERI D. M. DHAR ( Alternate )SHRI G. NATARAJAN Indian Footwear Society, Madras
DR R. SELVABANJAN( Ahernafe)SHBI N. J. TALWAR Swastik Rubber Products Ltd, Pune
SEM A. K. KABVE( A[ternatt )DIRECTORGENERAL Directorate General of Mines Safety, Dhsnbad
JOINT DIRECTOIS( Alternate)Dss N. RAMANATEIAN Central Leather Research Institute, MadrasSHEXS. R. C. RAO Hindustan Steel Ltd, Ranchi
SHBI A. K. DAS GIJPTA( Alternatt )SERI R. S. RQY IndividualSHEXB. DU~TA Bengal Waterproof -Works( 1940) Ltd, Calcutta
( Continuedm page 2 )
@ Copyriglsf1981INDIAN STANDARDS INSTITUTION
This publication is protected under the Indian Copyright Act ( XIV of 1957) andreproduction in whole or in part by any means except with written permission of thepublisher shall be deemed to be an infringement of copyright under the said Act.
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1S:4128- 1980
( Continued,~rofnPagtr’1)
Members
SHRI G. ROY CEOUDEURY
SHIU JANE ALAM ( Alternate )SHRI K. L. P. RAOSHRI S. R. SAEA
Smu M. HAQUE ( Alternate )SBR1 A. K. SEIV
SHItI M. D. SUNDARARAJAN(StIRI B. D. SEN GUPTASEiRIN. R. SIXDAn
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Export Promotion Council for Finished Leather &Leather Manufacturers, Kanpur
Central Footwear Training CentFe, Agra
The State Trading Corporation of India Limited,New Delhi
Ahwk3f8 )Indian Leather Technologists Association, CalcuttaCommerce & Industries Department, Government of
West Bengal, CalcuttaSHRI R. N. BISWAS ( Alfernafs )
SERI SUBEAS SINFLA Aero Traders, New DelhiSmsI MAN MOHAN SINC+H( Alternate )
SERI J. SINEA ROY Tannery & Footwear Corporation of India Limited,Krrnpur
SHRSK. S. UNNY Directorate of Industries, Government of UttarPradesh, Kanpur
CENTRALCONTROLLER( QMS ) ( Alternate)DR G. M. SAXEXA, Director General, 1S1 ( Ex-oficio Member )
Director ( Chem )Secretary
SmsI N. N. SAHAAssistant Director ( Chem ), 1S1
Industrial Safety and Special Purposes Footwear Subcommittee,CDC 40’:6
Cormener
SHRXN. R. LODH Small Industries Service Institute, Jammu
Members
SHRI P. N. ARORA Pama Footwear Industries, KanpurSRRXP. L. BAISERJBE Glace Kid ( India ) Ltd, CalcuttaSHRI J. C. BESATCA State Trading Corporation of India Ltd, New DelhiSHRI S. K. BHADRA Bata India Ltd, Calcutta, West BcngaiSHRI N. R. BOSE Tannery & Footwear Corporation of India Ltd,
KanpurSHBI M. M. GARG ( Altmnatt )
BRIG P. R. CHAHUAN National Safety Council, Bombs ySHRI D. M. DHAR Durgapur Steel Plant ( SA1L ), Du:gapurSEm M. KANT Messrs Safety Services, Bombay
SHRI M. M. SUAH ( Ahrnate )SHUI MADAN MOMA~ Central Labour Institute, Bombay
SHRI M. K. MALIIOTItA ( Allernafe )SHRI V. K. MURTHY Safety & Accident Prevention Services, The Tata
Iron and Steel Go Ltd, JamshedpurSERI R. S. RAY Bengal Waterproof Works ( 1940 ) Ltd, West BengalJonwr DXUECTOR OF MINES Directorate General of Mine Safety, Dhanbad
SAEETY( MSE )SHRI S. R. SAHA Ministry of Dcfence ( DGI)
SHRI M. HAQUE ( Alfernate )SERI AJI~ KUiUARSEN Direc~::t:f Cottage & Small Scale Industries,
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IS :4128-1980
Indian Standard
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SPECIFICATION FORFIREMAN’S LEATHER BOOTS
(First Revision)
O. FOREWORD
O. L This Indian Standard ( First Revision ) was adopted by the IndianStandards Institution on 4 Sep!ember 1980, after the draft finalized bythe Footwear Sectional Commltte@ had been approved by the ChemicalDivision Council.
O.Z Fireman’s boots a~e intended for use by fire-brigade personnelwhile engaged in fire filghtlng operation% to protect their feet and legsfrom direct heat and fire. Both machine and hand-closing methodsof construction of boots have been prescribed in this standard. A sketchof boot, with a special type of antislip device recommended for rubbersoles, has also been included in this standard.
0.3 ‘Ilk standard was originally published in 1967. The Committeetook note of the latest developments in trade and technology as wellas requirementsof fireman’s boots and decided to revise it. In thisrevision reference to Indian Standards have been made for solingmaterialsand wooden lasts. Further, dimensions of shanks have beenspecified and the maximum thickness limits for individual componentsof boot have been eliminated.
0.4 In the formulation of this standard , assistance has been derivedfrOm BS :27’25- !956 ‘ Fireman’s leather boots ‘, published by the J3ritish
Standard Institution.
0.5 For the purpose of deciding wheather a particular requirement ofthis standard is complied with, the final value, observed or calculated,expressing the result of a test or analysl% shall be rounded off in accord-ance with IS : 2-1960*. The number of sigmficant places retained inthe rounded OR value should be the same as that of the specifiedvalue in this standard.
*Rules for rounding off numerical values ( r.nimd ).
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IS: 4128 =1980
1. SCOPE
1.1 This standard specifies the requirements, methods of sampling andtest for fireman’s leather boots, knee high ( Wellington type ) withupper of waterproof chrome leather and rubber sole.
2. TERMINOLOGY
2.1 For the purpose of this standard, definitions given in IS : 2050-1969*shall apply.
3. REQUIREMENTS
3.1 Description — The boots shall be of Wellington design as shownin Fig. 1 and made from printed grain, brown or black upper leather andrubber outer soles and heels. The boots shall have a leg height of356 + 2 mm when measured at the back from the heel seat for size 8.The leg height shall increase or decrease by 6 mm for each size. Theboots shall not weigh more then 2“6 kg per pair for size 8. This massshall increase or decrease cumulatively by 150 g for other sizes.
3.2 Materials
3.2.1 Upper Leather — Zuggrain or any other grain as agreed betweenthe supplier and the purchaser or the black or brown upper leatherconforming to X3 : 2961 -1973f’ or IS :8578-1971$ shall be used. Theleather shall be further fat liquored or stuffed heavily so as to havetotal fat content of 12 to 15 percent by mass.
3.2.2 Lining Leather — For vamp lining and top band lining, vegetabletanned leather in natural colour conforming to IS :3840-1979$ shallbe used.
3.2.3 Bottom Leather
3.2.3.1 For lifts, toe-puffs and stiffeners well struck and compressedvegetable tanned sole leather conforming to IS :579 ( Part II j-197311shall be used,
3.2.3.2 Middle sole and insole — For middle sole and insole chrometanned natural colour sole leather conforming to IS : 1636-1960~shall be used.
*Glossaryof footwear.terms.?Specification for chrome retan finished upper leather ( Jrst revision ).~SPecification for full-chrome upper leather ( secondrevision).$Specification for l,ning leather ( Jrst revision).IISPecification for sole leather: Part H Water-resistantvegetable tarsned sole leather
( second revi$ion).~Specification for chrome waxed sole leather.
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IS :4128-1980
3.2.4 Rub ber Sole and Heel — Rubber sole and heel shall have antislipdesign and shall be as agreed unit between the purchaser and thesupplier.
3.2.4.1 A recommended design of the rubber sole is shown in Fig. 2.
T-.--------s.
-------------
lz---:~;,’X,;
,?----: ----- --------
Fro. 1 FIREMAN’S LEATHER 1300T ( WELLINGTON TYPE )
FIG. 2 RUBBER SOLE
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1S :4128-1980
3.2.4.2 The sole and heel shall be of rubber, premoulded andvulcanized, non-porous and homogeneous. The material shall conformto the requirements of Type 1 of “IS : 5676-1970*.
3.2.5 Thread
3.2..5.1 Upper closing — For upper closing rot-proof linen threads92 tex x 3 ( or 18 s/3 linen count ) having minimum breaking load of8 kg and 92 tex X 5 (or 18 s/5 linen count ) having a minimum breakingload of 11 kg when tested on 60 cm gauge lengths, shall be used.
3.2.5.2 Middle sole stitching by ‘machine — Linen thread 9!? tex x 10(or 18 s/10 linen count) having a minimum breaking load of 30 kgshall be used for shuttle and 92 tex x 12 ( or 18 s/12 linen count ) havinga minimum breaking load of 34 kg shall be used for the top.
3.2.5.3 Middle sole stitching by hand — Linen thread 92 tex x 10 (18s/10 linen count ) having a minimum breaking load of 30 kg shall beused for the hand stitching of soles.
NOTE— Silk or synthetic thread of suitable quality may also be used if agreedbetween the purchaser and the supplier.
3.2.6 Bottom Filling Material — The bottom filling material shall besuch that it does not crumble or shift. Tarred felt or tarred gunny isrecommended.
3.2.7 Leg Stay — For leg stay 16 -& 2 mm wide and 230 + 2 mm longpiece of unbreakable rigid plastic shall be used.
3.2.8 Brass Spear Pointed Rivets — Rivets 16 + 1 mm long for toeand heel seat and 12 k ~ mm long for waist and sides shall be used forriveting the middle sole.
3.2.9 Lasting Tacks — Rust-proof lasting tacks of 9 + 1 mm shallbe used.
3.2.10 Brass Screws — For attaching rubber heels and rubber soles32 -& 1 mm No. 4 and 12 + 1 mm ‘No. 4 brass screws respectivelyshall be used.
3.2.11proofed,be used.
3.2.12used for
3.2.13outside before flanging out the upper ( see IS : 4663 -1963T ).
*Specification for moulded solid rubber soles and heels.T. Specification for permanent rubber-based adhesive for footwear industry,
Shank — Shaped and ribbed shank of mild steel suitably rust1-2 to 1”5 mm thick and not less than 12 mm “in width shall
1i
Cement Toe-Compound — Cement or gum compound shall bereinforcing the toe puff and stiffeners.
Rubber Adhesive — Rubber based adhesive shall be used on the
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Xxlo30 kg
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IS :4128-1980
3.3 Each component of the boot shall comply with the requirementsstipulated in Table 1.
SLNo.
(1)
i)
ii)
iii)
v)
vi)
vii)
viii)
TABLE 1 REQUIREMENTS OF COMPONENTS OF LEATHERBOOTS FOR FIREMEN
COMPOXE~T MATEBIAL T~IOKNESEA4in, mm
(2) (3) (4)
Vamp Prime part of side from water. 1.50resistant full-chrome upper leather
Quarters Remaining best portion of side from 1“75water-resistant full-chrome upperleather
Counter back-strap do 1“25loop
Vamp and top-band Cow, calf or goatskin lining leatherlining
1.00
Insole Chrome waxed sole leather ( shoul. ‘3”25der part )
Through middle sole Chrome waxed sole leather, butt or 4.2shoulder part
Stiffener and toe Well struck vegetable tanned sole 2“1puff leather ( shoulder or bellies )
Leather lift Compressed vegetable tanned sole 2“6. . . . . . .leather ( ShoulclelS )
3.3.1 The boots shall also be waterproof when tested in acordancewith test method given in Appendix A.
3.4 Manufacture
3.4.1 The boots shall be made in accordance with the design shownin Fig. 1. The boots shall be made on lasts conforming to dimensionsof IS : 5520-1969*.
1q!.! 3.4.1.1 The boots shall be supplied in any of the four fittings for
each size, that is small, medmm, large or extra large, as previously
%
agreed between the purchaser and the supplier.
3.4.2 The boots shall be made by the Veldtschoen method ofconstruction with the middle sole riveted to the insole and the flangedout upper shall be stitched with the middle sole.
3.4.3 All upper components shall be properly prepared by skiving
and the front ( vamp ) and the front lining shall be blocked to ensureadequate shaping of the components.
*specification for last wooden, for heavy-duty boots.
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IS: 4128-19801
3.4.4 All parts of the upper and lining shall be correctly fitted. Thefront lining and the leg-portion shall be whole-cut.
3.4.5 The upper shall be machine closed. The counter shall be cutstraight at the back and the back strap fitted under the counter. Thefronts shall be closed by two close rows of stitching by means of linenthread 92 tex X 3 ( or 18s/3 linen count ) and the loops, counters, backstrap and top band by means of one row of stitching using linen thread92 tex X 5 ( or 18s/5 linen count ) at the rate of 20 to 25 stitches perdecimetre. The back shall be seamed by means of linen thread 92 texx 3 ( or 18s/3 linen count ) using 25 to 30 stitches per decixmetre.
After stitching, this seam shall be properly rubbed down.
3.4.5.1 For leg stay, a piece of unbreakable rigid plastic stay asindicated. in 3.2.’7, shall be Inserted between the back strap and the leg.An additional row of Stltchlng at a height of 32 + 2 mm from the topof the counter shall be machined through the back strap and the backof the boot to form a stop for the stay.
3.4.5.2 Two straps 265 & 2 mm long and 280 + 1 mm wide shallused to form the 100PS -which shall be wide enough to permit the bootsto be easily donned or pulled on and shall be fitted to each side of theleg. Each strap shall be laid on the outside of the leg, carried over thetop of the leg and fitted into a slot in the top band 63”0 mm down.Both ends of the strap shall then be stitched together through the leg.
3.4.5.3 After closing, aH ends of the stitching threads shall .be tiedand all seams hammered down.
3.4.6 All bottom components shall be correctly moulded beforeattachment. The insole shall be properly buffed on the grain side andthen feathered. The middle sole shall be-in one piece and split to aneven substance all round to ensure soIidity in riveting.
3.4.7 The toe PUff shall be inserteg grain side to the lining, Thestiffeners and the toe PUff shall be reinforced with paste or cement tomake them hard and strong. These shall be so fitted that no ridge is
formed in the finished boot.
3.4.8 The upper shall be drafted and snugly embedded to the last.The outside of the uppe: *shall be turned back and only the stiffener,back, toe PUfl and vamp IInlng shall be lasted to the insole by means oflasting tacks ( see 3.2.9 ).
3.4.9 After lasting the vamp ~i~ing~ back, toe PUB and stiffeners andthe attachment of the sha~k t? the waist of ~he insolf the bottom cavityshall be completely filled m with bottom filllng, previously approved.
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i IS: 4128-1980
3.4.10 The middle sole shall then be riveted on by means of two rowsof brass spear pointed rivets using 16 -J 1 mm rivets for the toes andseats and 12 + 1 mm for the waist and sides. The distance between thetwo rows of rivets shall be 6 -& 1 mm, and the rivets shall be spaced10 +- 2 mrn apart from centre to centre of the heads. A]] nails or tack-ing wires used for temporary attachment shall be withdrawn.
3.4.11 The flesh side of the outside upper at the front, the counter andthe feather formed by the middle sole shall be Iiberally coated with arubber adhesive.
3.4.12 The front of the counter shall be properly flanged out and snuglylasted on the Veldtschaen principle. There shall be no wrinkles or loosematerial, the upper being lightly flanged out and lightly secured bymeans of tacks.
3.4.13 The flanged out upper shall then be secured to the middle soleby one row of lock stitching all round the boot using 92 tex x 10 ( or18s/10 linen count ) linen thread for stitching by hand, and 92 tex X 12( or 18s/10 linen count ) for the top and 92 tex X 10 ( or 18s/10 linencount ) for the shuttle in case of stitching by machine. All threads shallbe properly waxed.
3.4.14 The middle sole surface shall be slightly roughned and therubber outer sole shall be stuck down over the middle sole by means ofa rubber adhesive. The rubber outer sole shall then be screwed bymeans of 12 + 1 mm brass screws No. 4 all round, each screw beingspaced at a distance of 20 mm.
3.4.15 The rubber heel shall similarly be stuck down and screwed by32 =t 1 mm brass screws No. 4. If necessary, a leather lift shall beinserted between the rubber sole and rubber heel. The height of thefinished heel, measured at the”back including the thickness of the flangedupper shall be 30 -& 2 mm for all sizes.
3.4.16 Finishing
3.4.16.1 The sole and heel edges shall be neatly trimmed andfinished smooth and black. The setting of the sole and heel edges shallbe properly done and >moothly finished.
3.4.16.2 All closing seams on the finishing boot and the stitches onthe flange upper shall be given a suitable coating of rubber adhesive inorder to ensure that all the needle holes are completely filled.
3.4.16.3 The inside top hand shall be 125 + 2 mm wide. The backstrap shall be of not less than 25 mm in width.
3.4.16.4 A seat sock of the same material as the lining shall be firmlypasted to the seat of the insole.
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1S :4128 = 1980
3.4.17 In appearance, general workmanship and finish and in all otherrespects not defined in this specification the boots shall be equal to thatof the approved sample, if held by the purchaser.
4. MARKING AND PACKING
4.1 The size and fitting number of the boot shall be legibly stamped onthe waist of the outer sole as well as on the waist of the insole. Themanufacturer’s name or recognized trade-mark together with the year ofsu_pply should also be legibly stamped at the waist of the insole/fullsocks.
4.2 The boots shall be suitably packed as agreed between the purchaserand the supplier.
4.2.1 The boots and packages may also be marked with the 1S1 Certi-fication Mark.
NOTE— The use of the 1S1 Certification Mark is governed by the provisions of theIndian Standards Institution ( Certification Marks ) Act and the Rules and Regu-lations made thereunder. The 1S1 Mark on products covered by an Indian Standardconveys the assurance that they have been produced to comply with the requirementsof that st?nd?rd under a well-defined system of inspection, testing and qualitycon trol which ISdewsed and superwsed by 1S1 and operated by the producer. 1s1marked products are also continuously checked by 1S1 for conformity to that standardas a further safeguard. Details of conditions under which a Iicence for the use ofthe 1S1 Certification Mark may be granted to manufacturers or processors, may beobtained from the Indian Standards Instltutlon.
5. SAMPLING AND CRITERIA FOR ACCEPTANCE
5.1 For the purpose of ascertaining conformity of boots in a consign-ment to this specification the scale of sampling and criteria for confor-mity shall be as prescribed in IS : 2051-1976*.
APPENDIX A( Clause 3.3.1 )
TEST METHOD FOR WATERPROOFNESS
A-1. PRINCIPLE OF T-HE METHOD
A-1.1 The Objectof }his test is to subject the boots to conditions whichare similar to-those llkely to be-met In use> and which will wet at least aportion of every seam in the boot below a level of 300 mm. Water issprayed on the boot at a pr~determined rate at a height of 300 mm abovethe bottom and penetration of water through seems in observedvisually.
●Methods for sampling of leather footwear (Jrst rmkim ).
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/ IS :4128-198”0
A-2. APPARATUS
A-2.1 Expanding Jubilee-Type Ring — Using inside the top of theboot for holding it in the form of a circle, at the level of spray ring.
A-2.2 Inverted Manometer — A device for measuring the rate of flowof water through the holes in the spray ring. It is attached to the watersupply line and connected across a construction of known area of cross-section.
A-2.3 Spray Ring — A spray ring of 200 mm inside diameter surroun-ding the leg of the boot at a height of 300 mm above the bottom of thetray, with 32 holes equally spaced around it, so arranged that watersprays out through them horizontally towards the boot. The holes aredrilled with a No. 67 drill.
A-2.4 Tray — A tray in which the boot stand, which has an overflowmaintaining a water level of 50 mm.
A-3. PROCEDURE
A-3.1 Place the boot in the tray, which contains water to a depth-of50 mm at a temperature of 27 & 2°C, note the time and turn on thespray immediately. Adjust the water pressure so that the rate of flow is1400 to 1600 ml/min and the temperature of the sprayed water at27 + 2“C. At suitable interals examine the interior of the boot forpenetration of water without removing it from the tray. This may bedone visually with the aid of a mirror and light for examining theinterior of the forepart.
NOTE — In apparatus having the construction in the form ofa tube 6“35 mm longand 2“9 mm diameter f No. 23 drill ) the difference in water levels in the manometerhas been found to be 16 cm, but direct calibration of this type of flowmeter is necessary.
A-4. RESULT
A-4.1 When the amount of water which has penetrated is sufficient tocause discomfort, note the time which has elapsed and if this is less than4 hours the boot shall be regarded as failing the test. After 4 hours,remove the boot and examine it carefully to ensure that it meets therequirements in respect of water penetration.
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INTERNATIONAL SYSTEM OF UNITS ( S1 UNITS)
Base Units
-QuAxmrY
LengthMawTimeElectric currentThermodynamic
temperatureLuminous intensityAmount of mbstance
Supplementary UrIi$e
QUANTITY
Plane angleSolid angle
Derived Unit,
QIJA-NTITY
ForceEnergyPowerFlux
Flux density ‘
Frequency
Electric conductance
Electromotive force
Preraurc, stress
UNIT
metre
Uogram
second
ampere
kelvin
candela
mole
UNIT
radian
steradian
UNIT
newton
joule
watt
weber
teds
hertz
siemcns
Volt
pascd
SYMBOL
m
kg
s
A
K
cd
mol
SYXBOL
rad
sr
SYMBOL
N
JwWb
T
Hz
svPa
DEBTIU~ION
1 N - 1 kg.rn/s9
1 J=l N.m1 W==l J/slWb=l V.s1 T == 1 Wb/ml1 Hz == 1 C/3 (s-l)
1 SE IA/V1 vml w/A1 Pa = 1 N/mi
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