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”

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“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 3466 (B) (1988): SPECIFICATION FOR MASONRY CEMENT [CED2: Cement and Concrete]

© BIS 2011

B U R E A U O F I N D I A N S T A N D A R D SMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

tuojh@January 2011 ewY; oxZ@Price Group 2

vkbZ,l@IS 3466 : 1988

Hkkjrh; ekud

fpukbZ lhesaV dh fof'kf"V¼ nwljk iqujh{k.k ½

la'kks/ku la[;k 1, 2, 3 vkSj 4 lekfo"V

Indian StandardSPECIFICATION FOR MASONRY CEMENT

( Second Revision )Incorporating Amendments No. 1, 2, 3 and 4

;wMhlh@UDC 666.946.5

¼f}Hkk"kh@Bilingual½

© Hkk ek C;wjks 2011

Hkkjrh; ekud C;wjksekud Hkou] 9 cgknqj 'kkg t+Qj ekxZ

ubZ fnYyh 110002

lhesaV ,oa daØhV fo"k; lfefr] lhbZMh 2

izkDdFku

0-10-10-10-10-1 bl Hkkjrh; ekud (nwljk iqujh{k.k) osQ elkSns dks lhesaV ,oa daØhV fo"k; lfefr }kjk vafre :i nsus vkSj flfoybathfu;jh foHkkx ifj"kn~ }kjk vuqeksnu osQ ckn 3 vDrwcj 1988 dks Hkkjrh; ekud C;wjks }kjk xzg.k fd;k x;kA

0-20-20-20-20-2 fpukbZ lhesaV dk fofuekZ.k iksVZySaM lhesaV fDyadj vkSj ftIle ikstyuh; lkexzh ;k vfØ; lkexzh ok;qxzkgh lq?kn;dkjdinkFkZ (IykfLVlkbtj) osQ lkFk mfpr vuqikr esa feykdj cus feJ.k dks varjax :i ls ihldj fd;k tkrk gSA lkekU;r% blesalkèkkj.k iksVZySaM lhesaV dh lw{erk ls vfèkd lw{erk rd dh filkbZ dh tkrh gSA fpukbZ lhesaV osQ iz;ksx dk è;s; izèkku :ils b±V] iRFkj o daØhV Cykd dh fpukbZ vkSj IykLVj osQ dk;Z esa iz;ksx fd, tkus okys elkys osQ fy, gSA bl lhesaV dks eghufeykos esa feykdj cuk;k x;k elkyk fpduk] lq?kn; vkSj fpidus okyk gksrk gS] ;g elkyk ;|fi etcwr gksrk gS fiQj Hkhmlls vklkuh ls dk;Z fd;k tk ldrk gSA blhfy, fpukbZ lhesaV pwuk&elkys] pwuk&lhesaV&elkys ;k lhesaV&elkys ls mÙke ekuktkrk gSA pwuk&elkys vis{kkÑr de lkeF;Z okys rFkk èkhjs teus okys gksrs gSaA ;s nkc Mkyus ij dHkh&dHkh ikuh Hkh NksM+rsgSaA lkèkkj.k lhesaV ls cus elkys ;|fi 'kh?kz teus okys vkSj mPp lkeF;Z okys gksrs gSa] ijUrq ;s dBksj (gk'kZ)] vlq?kn; vkSju fpidus okys gksrs gSa ftlosQ ifj.kkeLo:i fpukbZ osQ nkSjku ladqpu ;k rkitfur xfr osQ izHkko dks ugha lgu dj ikrs gSa]ftlls b±Vksa ;k Hkou Cykdksa esa ls gksdj vfèkd cM+h njkjsa vkus dh laHkkouk jgrh gSA tcfd pwuk feyk detksj elkyk iz;ksxdjus ij tksM+ksa esa ,d leku forfjr ckjhd pVdu vk tkrh gSA mfpr vuqikr rFkk eki dj cuk, x, pwuk&lhesaV elkys lsokafNr xq.kksa okyk vPNk fpukbZ elkyk cuk;k tk ldrk gS] ijUrq pwuk elkyk cukus esa le; vfèkd yxrk gS vkSj elkys esafcuk cq>k pwuk vkSj eSXuhf'k;k mifLFkr gksus ij foyfEcr izlkj mRiUu dj ldrs gSa ftlls fpukbZ vkSj iyLrj dk;Z esa nks"k

Cement and Concrete Sectional Committee, CED 2

FOREWORD

0.1 This Indian Standard (Second Revision) was adopted by the Bureau of India Standards on 3 October 1988,after the draft finalized by the Cement and Concrete Sectional Committee had been approved by the CivilEngineering Division Council.

0.2 Masonry cement is obtained by intimately grinding a mixture of Portland cement clinker and gypsum withpozzolanic or inert materials, and air entraining plasticizer in suitable proportions, generally to a fineness greaterthan that of ordinary Portland cement. Masonry cement is chiefly intended for use in masonry mortars for brick,stone and concrete block masonry, and for rendering and plastering work. Because of its property of producing asmooth, plastic, cohesive and strong, yet workable, mortar when mixed with fine aggregates, masonry cement isconsidered superior to lime mortar, lime-cement mortar or cement mortar. Lime mortars are relatively weaker instrength and slower setting and they sometimes bleed under pressure. Ordinary cement mortars, although fastsetting and capable of high strength development, are harsh, non-plastic and non-cohesive with the result that theycannot take up the shrinkage and temperature movements in the masonry and are liable to result in comparativelywide cracks passing right through the bricks of building blocks as compared to a number of evenly distributed haircracks in the joints which occur when weaker mortars containing lime are used. Properly proportioned and gauged

(Continued on third cover)

(rhljs doj ij tkjh)

1

vkbZ,l@IS 3466 : 1988

Hkkjrh; ekud

fpukbZ lhesaV dh fof'kf"V¼ nwljk iqujh{k.k ½

Indian StandardSPECIFICATION FOR MASONRY CEMENT

( Second Revision )1 SCOPE

1.1 This standard lays down the requirements formasonry cement to be used for all general purposeswhere mortars for masonry are required.

2 TERMINOLOGY

2.0 For the purpose of this standard, the followingdefinitions shall apply.

2.1 Masonry Cement — Product obtained byintergrinding a mixture of Portland cement clinker withpozzolanic materials, such as flyash and calcined claypozzolana; or non-pozzolanic (inert) materials, suchas limestone, conglomerates, dolomitic limestone,dolomite, granulated slag and waste materials likecarbonated sludge, mine tailings, etc, and gysum andan air-entraining plasticizer in suitable proportions sothat the resulting product conforms to the requirementslaid down in the standard.

2.2 Portland Cement Clinker

Portland cement clinker used, which shall be such thatordinary Portland cement made from it shall comply inall respects with the chemical requirements ofIS 269 : 1989* and the purchaser shall have the right,if he so desires to obtain sample of clinker used in themanufacture for the purpose of checking its conformityto IS 269 : 1989*.

3 PHYSICAL REQUIREMENTS

3.1 Masonry cement, when tested in accordance withthe methods of test specified in IS 4031 : 1988†, shallconform to the physical requirements given in Table 1.

1 fo"k; {k s=k1 fo"k; {k s=k1 fo"k; {k s=k1 fo"k; {k s=k1 fo"k; {k s=k

1-1 1-1 1-1 1-1 1-1 bl ekud esa mu lHkh lkekU; iz;kstuksa osQ fy, fpukbZlhesaV dh vis{kk,¡ fu£n"V dh xbZ gSa tgk¡ fpukbZ&elkys dhvko';drk gksrh gSA

2 ifjHk k f" kd 'kCnkoyh2 ifjHk k f" kd 'kCnkoyh2 ifjHk k f" kd 'kCnkoyh2 ifjHk k f" kd 'kCnkoyh2 ifjHk k f" kd 'kCnkoyh

2-02-02-02-02-0 bl ekud osQ iz;kstu osQ fy, fuEufyf[kr ifjHkk"kk,¡ykxw gksaxhA

2-1 fpukbZ lhesaV μ2-1 fpukbZ lhesaV μ2-1 fpukbZ lhesaV μ2-1 fpukbZ lhesaV μ2-1 fpukbZ lhesaV μ iksVZySaM lhesaV fDaydj rFkk ikstksyuh;lkexzh tSls ÝykbZ ,s'k] dSYluhÑr e`nk] ikstksykuk ;kxSj&ikstksyu;h (vfØ;) lkexzh tSls pwuk iRFkj] dksaxyksejsViRFkj] MksyksekbV] nkusnkj èkkrqey vkSj vif'k"V inkFkZ tSlsdkcksZfuÑr iad] [kkukssa ls fudyh feV~Vh vkfn vkSj ftIlerFkk ok;qxzkgh lq?kV~; inkFkZ (IykLVhlkbtj) mfpr vuqikr esafeykdj izkIr ,slk ifj.kkeh mRikn ekud esa fu£n"V vis{kkvksaosQ vuq:i gksA

2-2 iksVZySaM lhesaV fDaydj μ2-2 iksVZySaM lhesaV fDaydj μ2-2 iksVZySaM lhesaV fDaydj μ2-2 iksVZySaM lhesaV fDaydj μ2-2 iksVZySaM lhesaV fDaydj μ iz;qDr iksVZySaM lhesaV fDaydjtks ,slk gks fd lk/kkj.k iksVZySaM lhesaV blls cuh gks tksvkbZ,l 269 : 1989* dh jklk;fud vis{kkvksa lfgr lHkhigyqvksa ds vuq:i gks rFkk Øsrk vxj vkbZ,l 269 : 1989*

dh vuq:irk dh tk¡p djus ds mís'; ds fy;s fuekZ.k esaiz;qDr fDyadj ds uewus dks izkIr djus dh bPNk djrk gS rksblds ikl vfèkdkj gksA

3 Hkk S frd vis{kk, ¡3 Hkk S frd vis{kk, ¡3 Hkk S frd vis{kk, ¡3 Hkk S frd vis{kk, ¡3 Hkk S frd vis{kk, ¡

3-13-13-13-13-1 vkbZ,l 4031 : 1988† esa mfYyf[kr ijh{k.k i¼fr;ksaosQ vuqlkj ijh{k.k djus ij fpukbZ lheasV rkfydk 1 esa nh xbZHkkSfrd vis{kkvksa osQ vuqlkj gksA

*Ordinary Portland cement, 33 Grade — Specification (fourthrevision).†Methods of physical tests for hydraulic cement (first revision) (indifferent parts).

*lkèkkj.k iksVZySaM lhesaV] 33 xzsM μ fof'kf"V (pkSFkk iqujh{k.k)A†tyh; lhesaV osQ HkkSfrd ijh{k.k dh fofèk;k¡ (igyk iqujh{k.k) (fofHkUuHkkxkas esa)A

2

vkbZ,l@IS 3466 : 1988

3.1.1 If cement exhibiting false set, the ratio of finalpenetration measured after 5 minutes of completion ofmixing period to the initial penetration measuredexactly after 20 seconds of completion of mixingperiod, expressed as percent, shall be less than 50. Inthe event of cement exhibiting flase set, the initial andfinal setting time of cement when tested by the methoddescribed in IS 4031 : 1988* after breaking the falseset, shall conform to the requirements given in Table 1.

3.1.2 In the event of cements failing to comply with anyone or both the requirements of soundness specified inTable 1, further tests in respect of each failure shall bemade as described in IS 4031 : 1988* from another portionof the same sample after aeration. The aeration shall bedone by spreading out the sample to a depth of 75 mm ata relative humidity of 50 to 80 percent for a total period

3-1-13-1-13-1-13-1-13-1-1 ;fn lhesaV dk teko (lsfVax) vkHkklh gks] rks lhesaVfefJr djus dh vofèk iw.kZ gksus osQ Bhd 20 ls- osQ ckn ekisx, izkjfEHkd vUrosZ'ku (iSuhVsª'ku) vkSj fefJr djus dhvofèk iw.kZ gksus osQ 5 fefuV ckn ekis x, vafre vUrosZ'kudk vuqikr 50 izfr'kr ls de gksA lhesaV osQ vkHkklh teko(lsfVax) osQ ekeys eas] vkHkklh :i ls tesa lhesaV dks rksM+usosQ ckn vkbZ,l 4031 : 1988* esa fu£n"V i¼fr osQ vuqlkjijh{k.k djus ij lhesaV teus dk izkjfEHkd vkSj iw.kZ le;rkfydk 1 esa fufnZ"V vis{kk osQ vuq:i gksA

3-1-23-1-23-1-23-1-23-1-2 lhesaV osQ rkfydk 1 esa mfYyf[kr lkmaMuSl dh fdlh,d ;k nksuksa vis{kkvksa osQ vuq:irk u Bgjus dh fLFkfr esa]okru osQ ckn mlh uewus osQ nwljs Hkkx ls vkbZ,l 4031 : 1988*esa fu£n"V osQ vuqlkj izR;sd vliQy ijh{k.k osQ fy, nksckjkijh{k.k fd;k tk,A lhesaV dk okru uewus dks 7 fnu rd 50

Table 1 Physical Requirements(Clauses 3.1, 3.1.1 and 3.1.2)

SL NO. CHARACTERISTIC REQUIREMENT i) Fineness: Residue on 45-micron IS Sieve, Max, percent (by wet sieving) 15

ii) Setting Time (by Vicat Apparatus): a) Initial, Min 90 min b) Final, Max 24 h

iii) Soundness: a) Le-Chatelier expansion, Max 10 mm b) Autoclave expansion, Max 1 percent

iv) Comressive Strength: Average compressive strength of not less than 3 mortar cubes of 50 mm size, composed of 1 part masonry cement and 3 parts standard sand* by volume, Min:

7 days 2.5 MPa 28 days 5 MPa

v) Air Content: Air content of mortar composed of 1 part masonry cement and 3 parts standard sand* by volume, Min

6 percent

vi) Water Retention: Flow after suction of mortar composed of 1 part masonry cement and 3 parts standard sand* by volume, Min

60 percent of original flow

*Standard sand shall conform to IS 650 : 1966 ‘Specification for standard sand for testing of cement (first revision)’.

rkfydk 1 HkkSfrd vis{kk,¡rkfydk 1 HkkSfrd vis{kk,¡rkfydk 1 HkkSfrd vis{kk,¡rkfydk 1 HkkSfrd vis{kk,¡rkfydk 1 HkkSfrd vis{kk,¡([kaM 3-1] 3-1-1 vkSj 3-1-2)

Ø-la-Ø-la-Ø-la-Ø-la-Ø-la- vfHky{k.kvfHky{k.kvfHky{k.kvfHky{k.kvfHky{k.k vis{kk,¡vis{kk,¡vis{kk,¡vis{kk,¡vis{kk,¡

i) lw{erk% 45&ekbØksu dh vkbZ,l Nyuh] vfèkdre] izfr'kr (xhyk Nkuus ij) 15

ii) teko dk le; (okbdsV midj.k }kjk)%d) izkjfEHkd] U;wure 90 feuV[k) vafre] vfèkdre 24 ?kaVs

iii) lkmUMuSl%d) yk&'kkrkfy, izlkj] vfèkdre 10 feeh-[k) vkWVksDyso izlkj] vfèkdre 1 izfr'kr

iv) laihM; lkeF;Z% vk;rukuqlkj 1 Hkkx fpukbZ lhesaV vkSj 3 Hkkx ekud jsr* ls cus elkys osQ 50 feeh-lkbt osQ 3 ?kuksa dh vkSlr laihM; lkeF;Z] U;wure%

7 fnu 2-5 eSxkikLd28 fnu 5 eSxkikLd

v) ok;q va'k% vk;rukuqlkj 1 Hkkx fpukbZ lhesaV vkSj 3 Hkkx ekud jsr* ls cus elkys esa ok;q va'k] U;wure 6 izfr'kr

vi) ty èkkj.k% vk;rukuqlkj 1 Hkkx fpukbZ lhesaV vkSj 3 Hkkx ekud jsr* ls cus elkys dk pw"k.k osQ ckn ewy izokg dk 60 izfr'kr

izokg] U;wure

*vkbZ,l 650 : 1966 ^lhesaV ijh{k.k osQ fy, ekud jsr dh fof'kf"V (igyk iqujh{k.k)* osQ vuq:i ekud jsrA

*Methods of physical tests for hydraulic cement (first revision) (indifferent parts).

*tyh; lhesaV osQ HkkSfrd ijh{k.k dh fofèk;k¡ (igyk iqujh{k.k)* (fofHkUuHkkxkas esa)A

3

vkbZ,l@IS 3466 : 1988

of 7 days. The expansion of cements so aerated shall notbe more than 5 mm and 0.6 percent, when tested by Le-Chatelier method and autoclave test respectively.

4 STAINING

4.1 This requirement shall apply only when a purchaserspecifically states that cement shall be non-staining tolimestone. Non-staining cement shall contain not morethan 0.03 percent of water soluble alkali whendetermined in accordance with the method given inIS 4032 : 1985*.

NOTE — The amount and nature of the staining material inlimestones seems to vary with the stone. The alkali in anycement may, therefore, induce markedly different staining ondifferent stones, even though it may have come apparently fromthe same source. The amount of water soluble alkali permittedby the specification should not cause stain unless stone high instaining material is used, or unless insufficient means have beenused to prevent infiltration of water into the masonry.

5 STORAGE

5.1 The cement shall be stored in such a manner as topermit easy access for proper inspection andidentification, and in a suitable weather-tight buildingto protect the cement from dampness and to minimizewarehouse deterioration.

6 MANUFACTURER’S CERTIFICATE

6.1 The manufacturer shall satisfy himself that thecement conforms to the requirements of this standard,and if requested, shall furnish a certificate to this effectto the purchaser or his representative.

7 BASIS OF PURCHASE

7.1 The purchaser shall specify whether non-stainingmasonry cement as specified in 4 is desired. When thisis not specified, the requirements for ordinary masonrycement shall govern.

8 DELIVERY

8.1 The cement shall be packed in bags (jute sackingbag conforming to IS 2580 : 1982†), double hessianbituminized (CRI type), multiply paper conforming toIS 11761 : 1986‡, polyethylene lined (CRI type) jute,light weight jute conforming to IS 12154 : 1987§,woven HDPE conforming to IS 11652 : 1986||, woven

ls 80 izfr'kr vkisf{kr vknzZrk ij 75 feeh- xgjkbZ rdiQSykdj fd;k tk,A bl izdkj okfrr lheasV dh yk&'kkrkfy,i¼fr vkSj vkWVksDyso ijh{k.k ls Øe'k% tk¡p djus ij lhesaVdk izlkj 5 feeh- vkSj 0-6 izfr'kr ls vfèkd u gksA

4 èkCc s iM +uk4 èkCc s iM +uk4 èkCc s iM +uk4 èkCc s iM +uk4 èkCc s iM +uk

4-14-14-14-14-1 ;g vis{kk rHkh ykxw gksxh] tc Øsrk us ;g mYys[kfo'ks"k :i ls fd;k gks fd lheasV pwuk iRFkj ij èkCcs u MkysAvkbZ,l 4032 : 1985* osQ vuqlkj Kkr djus ij èkCcs u Mkyusokyh lhesaV esa ty foy; {kkj 0-03 izfr'kr ls vfèkd u gksA

fVIi.kh μ μ μ μ μ pwuk iRFkj esa èkCcs Mkyus okyh lkexzh dh ek=kk rFkkizÑfr gj iRFkj esa vyx&vyx izrhr gksrh gSA pkgs lheasV ,d ghÏksr lkexzh ls cuk;k x;k gS] rc Hkh lhesaV esa mifLFkr lkjvyx&vyx iRFkjkas ij vyx&vyx izdkj ls èkCcs Mkyrk gSAfof'kf"V esa vuqer ty foys; {kkj dh ek=kk èkCcs u Mkys] tc rdfd èkCcs Mkyus okys inkFkZ dh vfèkd ek=kk u gks ;k fpukbZ esa tydk izos'k jksdus osQ fy, vi;kZIr mik; fd, x, gksaA

5 Hk aMkj.k5 Hk aMkj.k5 Hk aMkj.k5 Hk aMkj.k5 Hk aMkj.k

5-1 5-1 5-1 5-1 5-1 lhesaV dk HkaMkj.k bl rjhosQ ls fd;k tk, fd mi;qDrfujh{k.k vkSj igpku osQ fy, vklkuh ls igq¡pk tk losQ vkSj blsmi;qDr ekSle izfrjksèkh bekjr esa j[kk tk, ftlls lhesaV dk uehls cpko gks lds vkSj HkaMkjx̀g esa j[kus esa U;wure [kjkch gksA

6 mRiknd dk izek.k i=k6 mRiknd dk izek.k i=k6 mRiknd dk izek.k i=k6 mRiknd dk izek.k i=k6 mRiknd dk izek.k i=k

6-16-16-16-16-1 mRiknd bl ckr dh larqf"V dj ys fd lhesaV bl ekuddh vis{kkvksa osQ vuq:i gS vkSj blosQ fy, vuqjksèk fd, tkusij mRiknd Øsrk vFkok mlosQ izfrfufèk dks bl ckr dkizek.k i=k iznku djsA

7 Ø; dk vkèk kj7 Ø; dk vkèk kj7 Ø; dk vkèk kj7 Ø; dk vkèk kj7 Ø; dk vkèk kj

7-17-17-17-17-1 ;fn Øsrk [kaM 44444 osQ vuqlkj èkCcs u Mkyus okyk lhesaV[kjhnuk pkgs] rks mls bldk mYys[k djuk gksxkA ;fn bldkmYys[k ugha fd;k x;k gS rks lkèkkj.k fpukbZ lhesaV dhvis{kk,¡ ykxw gksaxhA

8 lqiqn Zxh8 lqiqn Zxh8 lqiqn Zxh8 lqiqn Zxh8 lqiqn Zxh

8-18-18-18-18-1 lhesaV dks cksfj;ksa vkbZ,l 2580 % 1982† osQ vuq#iiVlu osQ] nksgjs gSfl;u foVqeuhÑr (lhvkjvkbZ izdkj dh)]vkbZ,l 11761 % 1986‡ osQ vuq#i cgqijrh dkxt dh]ikWfy,fFkyhu vLrj yxh (lhvkjvkbZ izdkj dh) iVlu dh]vkbZ,l 12154 % 1987§ osQ vuq#i iVlu dh gYosQ Hkkjokyh] vkbZ,l 11652 % 1986|| osQ vuq#i ,pMhihbZ ls cquh]

*Method of chemical analysis of hydraulic cement (first revision).†Specification for jute sacking bags for packing cement (secondrevision).‡Specification for multiwall paper sacks for cement, valved-sewn-gussetted type.§Specification for light weight jute bags for packing cement.||Specification for high density polyethylene (HDPE) woven sacksfor packing cement.

*tyh, lhesaV osQ jklk;fud fo'ys"k.k dh i¼fr (igyk iqujh{k.k)A

†lhesaV dh iSfdax gsrq iVlu dh lSfdax (nwljk iqujh{k.k)A

‡lhesaV osQ fy, cgqijrh dkxt dh cksfj;kas] okYoMfl;quμxlSfVM Vkbi

dh fof'kf"VA

§lhesaV iSfdax gsrq gYosQ Hkkj osQ iVlu dh cksfj;ksa dh fof'kf"VA

||lhesaV iSfdax gsrq mPp ?kuRo ikyh,fFkyhu (,pMhihbZ) dh cquh cksfj;ksa

dh fof'kf"VA

4

vkbZ,l@IS 3466 : 1988

polyproplyene conforming to IS 11653 : 1986*, jutesynthetic union conforming to IS 12174 : 1987† or anyother approved composite bags bearing themanufacturer’s name or his registered trade-mark, ifany. The words ‘masonry cement’ and the number ofbags (net mass) to the tonne or the nominal net mass(see 8.2) of the cement shall be legibly and indeliblymarked on each bag. Bags shall be in good conditionat the time of inspection.

NOTE — The bags shall conform to relevant Indian Standardsexcept dimenions.

8.1.1 Similar information shall be provided in thedelivery advice accompanying the shipment of packedor bulk cement (see 8.3).

8.1.2 The bags or packages may also be marked withthe Standard Mark.

NOTE — The use of the Standard Mark is governed by theprovisions of the Bureau of Indian Standards Act, 1986 andthe Rules and Regulations made thereunder. The Standard Markon products covered by an Indian Standard conveys theassurance that they have been produced to comply with therequirements of that standard under a well-defined system ofinspection, testing and quality control which is devised andsupervised by BIS and operated by the producer. Standardmarked products are also continuously checked by BIS forconformity to that standard as a further safeguard. Details ofconditions under which a licence for the use of the StandardMark may be granted to manufacturers or producers may beobtained from the Bureau of Indian Standards.

8.1.3 In order to distinguish the masonry cement fromthe ordinary Portland cement, a distinctive brightcoloured mark along with the words ‘Masonry Cement’shall be marked outside the bag.

8.2 The net mass of cement per bag shall be 50 kg (seeAppendix A).

8.2.1 The net mass of cement per bag may also be 25kg subject to tolerances as given in 8.2.1.1 and packedin suitable bags as agreed to between the purchaserand the manufacturer.

8.2.1.1 The number of bags in a sample taken forweighment showing a minus error greater than 2 per-cent of the specified net mass shall be not more than5 percent of the bags in the sample. Also the minuserror in none of such bags in the sample shall exceed 4percent of the specified net mass of cement in the bag.However, net mass of cement in a sample shall be equalto or more than 25 kg.

vkbZ,l 11653 : 1986* osQ vuq:i ikWyhizksihyhu ls cquh]vkbZ,l 12174 % 1987† laf'y"V ;wfu;u dh ;k vU;vuqeksfnr lafeJ (dEiksftV) esa iSd fd;k tk, ftuij mRiknddk uke vkSj mldk VªsM ekdkZ] ;fn dksbZ gks rks] vafdr gksvkSj izR;sd cksjh ij ^lkèkkj.k fpukbZ lhesaV* fy[kk gksA gjcksjh ij (fuoy nzO;eku) ,d Vu esa cksfj;ksa dh la[;k dk;k lhesaV dk fuoy nzO;eku (ns[ksa [kaM 8-28-28-28-28-2) Li"V vkSjvfeV v{kjksa eas vafdr gksA fujh{k.k osQ le; lhesaV dhcksfj;k¡ vPNh fLFkfr esa gksaA

fVIi.kh μ cksfj;k¡ vk;keksa dks NksM+dj lacafèkr Hkkjrh; ekudksa osQvuq:i gksaA

8-1-18-1-18-1-18-1-18-1-1 ;gh lwpuk iSdstcan vFkok [kqys lhesaV osQ ynku osQlkFk vkiw£r lwpuk i=k esa nh tk, (ns[ksa [kaM 8-3 8-3 8-3 8-3 8-3)A

8-1-28-1-28-1-28-1-28-1-2 cksfj;ksa ;k iSosQtksa ij ekud eqgj Hkh vafdr dh tkldrh gSA

fVIi.kh μ ekud eqgj dk mi;ksx Hkkjrh; ekud C;wjks vfèkfu;e1986 osQ izkoèkkuksa vkSj mlosQ vèkhu cus fu;ekas vkSj fofu;eksa osQvuqlkj gksrk gSA fdlh Hkkjrh; ekud lacafèkr mRikn ij eqgj dkyxk gksuk bl ckr dk vk Üoklu gS fd ml oLrq osQ cukus esa mlekud esa nh xbZ vis{kkvksa dk ikyu fd;k x;k gS vkSj mRiknu osQnkSjku mudk fujh{k.k] ijh{k.k vkSj fu;a=k.k ml lqfuf'pr iz.kkyh osQvuqlkj gqvk gS] ftldk fuèkkZj.k vkSj i;Zos{k.k rks Hkkjrh; ekudC;wjks }kjk gksrk gS ijUrq fØ;kUo;u mRiknd }kjkA bl iz.kkyh esacpko dh ,d vkSj ckr ;g gS fd ftu mRiknksa ij ;g ekud eqgjvafdr dh tkrh gS] Hkkjrh; ekud C;wjks mu mRiknksa dh yxkrkjtk¡p&iM+rky djosQ ;g ekywe djrk jgrk gS fd og mRikn lac¼ekud osQ vuq:i gSa ;k ughaA fofuekZrkvksa rFkk laLdÙkkZvksa dks ftu'krks± osQ vèkhu ekud eqgj yxkus osQ fy, ykblsal fn;k tkrk gS]mldk fooj.k Hkkjrh; ekud C;wjks ls fey ldrk gSA

8-1-38-1-38-1-38-1-38-1-3 lkèkkj.k iksVZySaM lhesaV ls fpukbZ lhesaV dk vUrjdjus osQ fy, cksjh ij ckgj dh vksj ^fpukbZ lhesaV* 'kCn osQlkFk pedhys jax okyk ,d foHksnd fu'kku Hkh yxk;k tk,A

8-28-28-28-28-2 gj cksjh esa lhesaV dh fuoy ek=kk 50 fdxzk- gks (ns[ksavuqcaèk d)A

8-2-18-2-18-2-18-2-18-2-1 izR;sd cksjh eas lhesaV dk fuoy nzO;eku 25 fdxzk- gksldrk gS c'krsZ [kaM 8-2-1-18-2-1-18-2-1-18-2-1-18-2-1-1 esa nh xbZ NwVsa ykxw gksa vkSj Øsrkvkiw£rdÙkkZ osQ chp le>kSrs osQ vuqlkj iSd fd;k tk,A

8-2-1-18-2-1-18-2-1-18-2-1-18-2-1-1 rksyus osQ fy, fy;s x, uewus eas ls yh xbZ ,slhcksfj;ksa dh la[;k] ftudh ½.kkRed =kqfV fu£n"V fuoynzO;eku osQ 2 çfr'kr ls vfèkd gks] uewus esa cksfj;ksa dhla[;k osQ 5 izfr'kr ls vfèkd u gks vkSj uewus esa ,slh fdlhHkh cksjh dh ½.kkRed =kqfV cksjh esa lhesaV osQ fu£n"V fuoynzO;eku osQ 4 izfr'kr ls vfèkd u gksA ijUrq uewus esa lhesaVdk vkSlr nzO;eku 25 fdxzk- osQ cjkcj ;k vfèkd gksA

*Specification for polypropylene (PP) woven socks for packingcement.†Specification for jute synthetic union bags for packing cement.

*lhesaV iSfdax gsrq ikWyhizksihyhu (ihih) dh cquh cksfj;ksa dh fof'kf"VA

†lhesaV iSfdax gsrq iVlu laf'y"V ;wfu;u cksfj;ksa dh fof'kf"VA

5

vkbZ,l@IS 3466 : 1988

8.3 Supplies of cement in bulk may be made byarrangement between the purchaser and the supplier(manufacturer or stockist).

NOTE — A single bag or container containing 1 000 kg ormore net mass of cement shall be considered as bulk supply ofcement. Supplies of cement may also be made in intermediatecontainers, for example, drums of 200 kg, by agreement betweenthe purchaser and the manufacturer.

8.4 The words ‘Not for structural concrete, flooringand foundation’ shall be marked on each bag orpackage.

9 SAMPLING

9.1 Samples for Testing and by Whom to be Taken— A sample or samples for testing may be taken by thepurchaser or his representative, or by any personappointed to superintend the work for the purpose ofwhich the cement is required or by the latter’srepresentative. The samples shall be taken within threeweeks of delivery and the tests shall be made withinfour weeks of delivery.

9.1.1 When it is not possible to test the samples withinfour weeks of delivery, the samples shall be packedand stored in air-tight containers till such time as theyare tested.

9.2 In addition to the requirements of 9.1, the methodsand procedure of sampling shall be in accordance withIS 3535 : 1986*.

9.3 Facilities for Sampling and Identifying — Themanufacturer or supplier shall afford every facility, andshall provide all labour and materials for taking andpacking the samples for testing the cement and forsubsequent identification of the cement sampled.

10 TESTS

10.1 The sample or samples of cement for tests shallbe taken as described in 9 and shall be tested in themanner described in the relevant clauses.

10.2 Temperature of Testing — The temperature rangewithin which physical tests may be carried out should,as far as possible, be 27 ± 2°C.

10.3 Non-compliance with Tests — Any cement whichdoes not comply with any of the tests specified above, orwhich has not been stored in the manner provided under5 may be rejected as not complying with this standard.

10.4 Independent Testing

10.4.1 If the purchaser or his representative requiresindependent tests, the samples shall be taken before or

8-38-38-38-38-3 Øsrk vkSj vkiw£rdÙkkZ (fofuekZrk vkSj Fkksd foØsrk) osQ chpvkilh le>kSrk djosQ cYd lhesaV dh vkiw£r dh tk ldrh gSA

fVIi.kh μ lhesaV dh ,d cksjh ;k èkkjd ftlesa lhesaV dk fuoynzO;eku 1 000 fdxzk- ;k blls vfèkd gks] lhesaV dh cYd vkiw£rekuk tk,xkA Øsrk vkSj vkiw£rdÙkkZ osQ chp lgefr osQ vuqlkj lhesaVdh vkiw£r eè;orhZ èkkjdksa] mnkgj.kkFkZ] 200 fdxzk- osQ Mªeksa esa Hkhdh tk ldrh gSA

8-48-48-48-48-4 çR;sd cksjh ;k iSdst ij ^lajpuk daØhV] iQ'kZcanh vkSjuhao osQ fy;s ugha* 'kCn fy[ks gksaA

9 uewu s ysuk9 uewu s ysuk9 uewu s ysuk9 uewu s ysuk9 uewu s ysuk

9-1 ijh{k.k osQ fy, uewus vkSj uewus fdlosQ }kjk fy,9-1 ijh{k.k osQ fy, uewus vkSj uewus fdlosQ }kjk fy,9-1 ijh{k.k osQ fy, uewus vkSj uewus fdlosQ }kjk fy,9-1 ijh{k.k osQ fy, uewus vkSj uewus fdlosQ }kjk fy,9-1 ijh{k.k osQ fy, uewus vkSj uewus fdlosQ }kjk fy,tkus gS a μ tkus gS a μ tkus gS a μ tkus gS a μ tkus gS a μ ijh{k.k dk uewuk ;k uewus Øsrk vFkok mlosQizfrfufèk }kjk ;k ftl dk;Z osQ fy, lhesaV [kjhnk tk jgk gSmldk i;Zos{k.k djus osQ fy, fu;qDr vFkok mlosQ izfrfufèk}kjk fy, tk ldrs gSaA uewus lhesaV vkiw£r osQ rhu lIrkg osQvanj ys fy, tk,¡ vkSj mudk ijh{k.k pkj lIrkg osQ vanjdj fy;k tk,A

9-1-19-1-19-1-19-1-19-1-1 ;fn vkiw£r djus osQ pkj lIrkg osQ vanj uewuksa dkijh{k.k djuk laHko u gks rks uewuksa dks iSd dj fy;k tk,vkSj ok;qjksèkh èkkjdksa esa ml le; rd osQ fy, j[k fn;k tk,]tc rd fd mudk ijh{k.k ugha fd;k tkrk gSA

9-29-29-29-29-2 [kaM 9-19-19-19-19-1 esa mfYyf[kr vis{kkvksa osQ vykok uewus ysusdh i¼fr vkSj izfØ;k vkbZ,l 3535 : 1986* osQ vuqlkj gksA

9-3 uewus ysus vkSj vfHkfuèkkZj.k (igpku) djus dh9-3 uewus ysus vkSj vfHkfuèkkZj.k (igpku) djus dh9-3 uewus ysus vkSj vfHkfuèkkZj.k (igpku) djus dh9-3 uewus ysus vkSj vfHkfuèkkZj.k (igpku) djus dh9-3 uewus ysus vkSj vfHkfuèkkZj.k (igpku) djus dhlqfoèkk,¡ lqfoèkk,¡ lqfoèkk,¡ lqfoèkk,¡ lqfoèkk,¡ μ fofuekZrk ;k vkiw£rdÙkkZ ijh{k.k osQ fy, lkjhlkexzh vkSj iSd djus osQ fy, etnwj vkfn rFkk ckn esa uewusfy, x, lhesaV osQ vfHkfuèkkZj.k (igpku) djus dh lqfoèkkiznku djsA

10 ijh{k.k10 ijh{k.k10 ijh{k.k10 ijh{k.k10 ijh{k.k

10-110-110-110-110-1 lhesaV dk uewuk ;k uewus [kaM 99999 eas mfYyf[kr osQvuqlkj fy, tk,¡ vkSj rRlacaèkh [kaMksa esa mfYyf[kr i¼fr osQvuqlkj mudk ijh{k.k fd;k tk,A

10-2 ijh{k.k osQ fy, rki 10-2 ijh{k.k osQ fy, rki 10-2 ijh{k.k osQ fy, rki 10-2 ijh{k.k osQ fy, rki 10-2 ijh{k.k osQ fy, rki μ HkkSfrd ijh{k.k ;FkklaHko27± 2°lsa- jast esa gh fd, tkus pkfg,A

10-310-310-310-310-3 ijh{k.k osQ izfr vuq:i u gksuk ijh{k.k osQ izfr vuq:i u gksuk ijh{k.k osQ izfr vuq:i u gksuk ijh{k.k osQ izfr vuq:i u gksuk ijh{k.k osQ izfr vuq:i u gksuk μ ;fn lhesaV mQijmfYyf[kr ijh{k.kksa esa [kjk u mrjs rFkk [kaM 55555 esa mfYyf[krosQ vuqlkj HkaMkj.k u djus ij] mls bl ekud osQ vuq:i ugksus osQ dkj.k vLohdkj dj fn;k tk,A

10-4 LorU=k ijh{k.k djkuk10-4 LorU=k ijh{k.k djkuk10-4 LorU=k ijh{k.k djkuk10-4 LorU=k ijh{k.k djkuk10-4 LorU=k ijh{k.k djkuk

10-4-110-4-110-4-110-4-110-4-1 ;fn Øsrk ;k mldk izfrfufèk LorU=k ijh{k.k djkuk

*tyh, lhesaV osQ uewus ysus dh fofèk (igyk iqujh{k.k)A*Method of sampling hydraulic cement (first revision).

6

vkbZ,l@IS 3466 : 1988

immediately after delivery at the option of the purchaseror his representative, and the tests shall be carried outin accordance with this standard on the writteninstruction of the pruchaser or his representative.

10.4.2 After a representative sample has been drawn,tests on the sample shall be carried out as expeditiouslyas possible.

pkgs] rks Øsrk ;k mlosQ izfrfufèk bPNkuqlkj lhesaV dh vkiw£rls igys ;k mlosQ rqjar ckn uewus fy, tk,¡ vkSj Øsrk ;kmlosQ izfrfufèk }kjk fyf[kr vuqns'k fn, tkus ij bl ekudosQ vuqlkj ijh{k.k fd, tk,¡A

10-4-2 10-4-2 10-4-2 10-4-2 10-4-2 lhesaV osQ izfrn'khZ uewuk ysus osQ ckn] uewus dk;Fkk'kh?kz ijh{k.k fd;k tk,A

vuqcaèk dvuqcaèk dvuqcaèk dvuqcaèk dvuqcaèk d([kaM 0-4 vkSj 8-2)

cksfj;ks a esa iSd lhesaV osQ nzO;eku osQ fy, NwV vis{kk,¡cksfj;ks a esa iSd lhesaV osQ nzO;eku osQ fy, NwV vis{kk,¡cksfj;ks a esa iSd lhesaV osQ nzO;eku osQ fy, NwV vis{kk,¡cksfj;ks a esa iSd lhesaV osQ nzO;eku osQ fy, NwV vis{kk,¡cksfj;ks a esa iSd lhesaV osQ nzO;eku osQ fy, NwV vis{kk,¡

APPENDIX A(Clauses 0.4 and 8.2)

TOLERANCE REQUIREMENTS FOR THE MASS OF CEMENT PACKED IN BAGS

A-1 The net mass of cement packed in bags at the plantin a sample shall be equal to or more than 50 kg. Thenumber of bags in a sample shall be as given below:

Batch Size Sample Size

100 to 150 20151 to 280 32281 to 500 50501 to 1 200 80

1 201 to 3 200 1253 201 and over 200

The bags in a sample shall be selected at radnom(see IS 4905 : 1968*).

A-1.1 The number of bags in a sample showing a minuserror greater than 2 percent of the specified net mass(50 kg) shall be not more than 5 percent of the bags inthe sample and the minus error in none of such bags inthe sample shall exceed 4 percent of the specified netmass of the bag.

NOTE — The matter given in A-1 and A-1.1 are extracts basedon the Standards of Weights and Measures (PackagedComodities), Rules, 1977 to which reference shall be made forfull details. Any modification made in these Rules and otherrelated Acts and Rules would apply automatically.

A-1.2 In case of wagon/truck load up to 25 tonnes, theoverall tolerance on net mass of cement shall be 0 to+ 0.5 percent.

ddddd-11111 la;a=k esa uewus dh cksfj;ksa esa Hkjh xbZ lhesaV dh fuoyek=kk 50 fdxzk- ;k mlls vfèkd gksA ,d uewus esa cksfj;ksa dhla[;k fuEufyf[kr gks%

[ksi dk lkbt uewus dk lkbt

100 ls 150 20151 ls 280 32281 ls 500 50501 ls 1 200 80

1 201 ls 3 200 1253 201 ls vkSj vfèkd 200

uewus esa cksfj;ksa dks ;kn`fPNd :i ls pquk tk, (ns[kasvkbZ,l 4905 : 1968*)A

ddddd-1-11-11-11-11-1 ,d uewus esa ,slh cksfj;ksa dh la[;k] ftudh ½.kkRed=kqfV fu£n"V fuoy nzO;eku (50 fdxzk-) osQ 2 izfr'kr ls vfèkdgks] uewus esa cksfj;ksa dh la[;k osQ 5 izfr'kr ls vfèkd u gks vkSjuewus esa ,slh fdlh Hkh cksjh dh ½.kkRed =kqfV cksfj;ksa esa lhesaVosQ fu£n"V fuoy nzO;eku osQ 4 izfr'kr ls vfèkd u gksA

fVIi.kh μ [kaM ddddd-11111 vkSj ddddd-1-11-11-11-11-1 ckV vkSj eki ekud (iSdstcanoLrq,¡)] fu;ekoyh] 1977 ij vkèkkfjr lkj :i gS vkSj iw.kZ fooj.kosQ fy, ml fu;e dk lanHkZ fn;k tk,A bl fu;e vkSj vU; lac¼vfèkfu;eksa vkSj fu;eksa esa dksbZ Hkh ifjorZu gksus ij os Lor% ykxw ekustk,¡A

ddddd-1-21-21-21-21-2 ;fn ekyxkM+h osQ fMCcs@Vªd esa lhesaV dk nzO;eku 25Vu rd gks] rks lhesaV osQ fuoy nzO;eku ij lexz NwV 0 ls+0-5 izfr'kr gksxhA

*Method for random sampling. *;kn`fPNd uewus ysus dh i¼frA

fookn dh fLFkfr esa bl ekud dk vaxzsT+kh ikB gh ekU; gksxkAIn case of dispute English version of this standard shall be authentic.

iSnk gks tkrs gSaA lhesaV vkSj pwuk feykus dh vko';drk dks lekIr djus vkSj FkksM+h ek=kk esa fcuk cq>k pwuk mifLFkr gksus osQdkj.k izlkj ls gksus okyh dfBukbZ;ksa dks de djus osQ fy, fon'kksa esa fpukbZ lhesaV dkiQh yksdfiz; gSA vr% vius ns'k esa Hkhbls yksdfiz; cukuk pkfg,A fpukbZ lhesaV osQ iz;ksx ls u osQoy fpukbZ elkys dh xq.krk esa lqèkkj gksxk] vfirq ns'k esa miyCèkÏksrksa osQ csgrj mi;ksx }kjk lhesaV dk mRiknu c<+kus dh vko';drk dks iwjk fd;k tk losQxkA ijUrq fpukbZ lhesaV lajpukdaØhV] iQ'kZ cukus rFkk uhao osQ dk;Z vkSj izcfyr daØhV dks iwoZ izfrcfyr dk;Z osQ fy, iz;ksx u fd;k tk,A

0-30-30-30-30-3 ;g ekud 1966 esa igyh ckj Hkou fuekZ.k m|ksx dh rkRdkfyd vko';drkvksa dks iwjk djus osQ fy, vkikr ekud osQ:i esa tkjh fd;k x;k Fkk] rRi'pkr 1967 esa bldk iqujh{k.k fd;k x;kA ekud osQ orZeku laLdj.k esa dqN NksVs eksVs la'kksèkuksaosQ vykok ok;q va'k rFkk ty jksd loQus lacaèkh vis{kkvksa osQ eku de fd, x, gSaA yk&'kkrkfy, rFkk vkWVksDyso lkmUMuSlijh{k.k esa iquiZjh{k.k dh vuqefr nh xbZ gS rFkk lhesaV osQ vkHkklh teko osQ [kaM dks 'kkfey fd;k x;k gSA

0-40-40-40-40-4 cksfj;ksa esa iSd lhesaV osQ nzO;eku vkSj cksfj;ksa esa iSd lhesaV osQ nzO;eku esa NwV vis{kk,¡ ckV ,oa eki (iSdtcan oLrq,¡)]ekud fu;ekoyh] 1977 vkSj ddddd-1-21-21-21-21-2 (ns[ksa vuqcaèk d) osQ rRlacaèkh izkoèkkuksa osQ vuqlkj gksaA lhesaV osQ nzO;eku esa NwV osQlanHkZ bu fu;eksa esa dksbZ ifjorZu Lor% gh bl ekud ij ykxw gksxkA

0-50-50-50-50-5 ;g fuf'pr djus osQ fy, fd bl ekud esa fdlh vis{kk fo'ks"k dk ikyu fd;k x;k gS ;k ugha] rks ijh{k.k ;k fo'ys"k.kosQ ifj.kke dks n'kkZus okys voyksdu ;k x.kuk }kjk izkIr vafre eku dks vkbZ,l 2 : 1960* osQ vuqlkj iw.kk±fdr dj fn;ktk,A iw.kk±fdr eku esa j[ks x, lkFkZd LFkkuksa dh la[;k mruh gh gks ftruh bl ekud esa fu£n"V eku dh gSA

* la[;kRed ekuksa osQ iw.kk±du lacaèkh fu;e (iqufjf{kr)A

(Continued from second cover)

(nwljs doj ls tkjh)

lime-cement mortars can be made to possess the desired properties of a good masonry mortar but the preparationof lime-cement mortars is time consuming and also unslaked lime and magnesia, when present in such mortars,can cause delayed expansion and consequently defects in the masonry and plaster work. In order to avoid thenecessity for mixing cement and lime, and in order to minimize the risk of trouble from expansion due to thepresence of small quantities of unslaked lime, the use of masonry cement is quite popular in a number of countriesabroad and its use should be encouraged in this country also. The use of masonry cement will not only improve thequality of masonry mortars but will also meet the emergent need to increase the production of cement by betterutilization of invaluable resources in the country. Masonry cement is, however, not intended for use in structuralconcrete, for flooring and foundation work or for reinforced and prestressed concrete works.

0.3 This standard was first issued as an emergency standard in 1966 to meet the immediate needs of the buildingindustry and subsequently revised in 1967. In the present revision, requirements regarding air content and waterretention have been lowered, retest has been allowed in case of Le-Chatelier and autoclave soundness test, and aclause on false set of cement has been incorporated in addition to some other minor modifications.

0.4 Mass of cement packet in bags and the tolerance requirements for the mass of cement packed in bags shall bein accordance with the relevant provisions of the Standards of Weights and Measures (Packaged Commodities)Rules, 1977 and A-1.2 (see Appendix A). Any modification in these rules in respect of tolerance on mass ofcement would apply automatically to this standard.

0.5 For the purpose of deciding whether a particular requirement of this standard is complied with, the final value,observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance withIS 2 : 1960*. The number of significant places retained in the rounded off value should be the same as that of thespecified value in this standard._________________

* Rules for rounding off numerical values (revised).

Bureau of Indian Standards

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promoteharmonious development of the activities of standardization, marking and quality certification of goodsand attending to connected matters in the country.

Copyright

BIS has the copyright of all its publications. No part of these publications may be reproduced in any formwithout the prior permission in writing of BIS. This does not preclude the free use, in the course ofimplementing the standard, of necessary details, such as symbols and sizes, type or grade designations.Enquiries relating to copyright be addressed to the Director (Publications), BIS.

Review of Indian Standards

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewedperiodically; a standard along with amendments is reaffirmed when such review indicates that no changes areneeded; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standardsshould ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of‘BIS Catalogue’ and ‘Standards : Monthly Additions’.

This Indian Standard has been developed from Doc No.: CED 2.

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDSHeadquarters:

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