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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-णSatyanarayan Gangaram Pitroda “Invent a New India Using Knowledge” प0रा1 को छोड न’ 5 तरफJawaharlal Nehru “Step Out From the Old to the New” जान1 का अ+धकार, जी1 का अ+धकारMazdoor Kisan Shakti Sangathan “The Right to Information, The Right to Live” !ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता ह Bharthari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” IS 15402 (2003): Ceramic Fibre Blanket Insulation [CHD 27: Thermal Insulation]
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Page 1: IS 15402 (2003): Ceramic Fibre Blanket InsulationIS 15402:2003 Wwfb7Wm FtRFRh w * m iwiwfwafw Indian Standard CERAMIC FIBRE BLANKET INSULATION — SPECIFICATION ICS 27.220; 81.060.20

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 15402 (2003): Ceramic Fibre Blanket Insulation [CHD 27:Thermal Insulation]

Page 2: IS 15402 (2003): Ceramic Fibre Blanket InsulationIS 15402:2003 Wwfb7Wm FtRFRh w * m iwiwfwafw Indian Standard CERAMIC FIBRE BLANKET INSULATION — SPECIFICATION ICS 27.220; 81.060.20
Page 3: IS 15402 (2003): Ceramic Fibre Blanket InsulationIS 15402:2003 Wwfb7Wm FtRFRh w * m iwiwfwafw Indian Standard CERAMIC FIBRE BLANKET INSULATION — SPECIFICATION ICS 27.220; 81.060.20
Page 4: IS 15402 (2003): Ceramic Fibre Blanket InsulationIS 15402:2003 Wwfb7Wm FtRFRh w * m iwiwfwafw Indian Standard CERAMIC FIBRE BLANKET INSULATION — SPECIFICATION ICS 27.220; 81.060.20

.,.’ IS 15402:2003

Wwfb7Wm

FtRFRh w * m iwiwfwafw

Indian Standard

CERAMIC FIBRE BLANKET INSULATION —SPECIFICATION

ICS 27.220; 81.060.20

0 BIS 2003

BUREAU OF INDIAN STANDARDSMANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG

NEW DELHI 110002

Scplc?mlx’t- 2003 Price Group 4

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r-q

‘1’hernia] [nsuiation sectional Committee, CHD 27

[’OREWORD

I his [l~dian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the ThermalInsuiution Sectional Committee had been zipproved by the Chemical Division Council.

‘1’Ilcusc of’ ceramic fibres as thermal insulation materials began in 1960’s. However, their use has grown since

eaI-ly 1970”s. The use ofceramic iibrcs products as high temperature insulation spread rapidly as a consequence of(IIC energy crisis ivorldwide in the early seventies, These are extensively used as thermal insulation and firercsis[ant inatcria!s besides their core strength as low thermal mass soft refractory lining material.

‘1’IICct~lllpositiorl OF[he Committee responsible for f(mnulation of this standard is given in Annex B.

I’or the purpose of dcciditlg 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 ‘Rules for rounding off numerical values (revised)’. The number of significant places retained in theroIIndcd of’f value should be the same as that of the specified value in this standard.

Page 6: IS 15402 (2003): Ceramic Fibre Blanket InsulationIS 15402:2003 Wwfb7Wm FtRFRh w * m iwiwfwafw Indian Standard CERAMIC FIBRE BLANKET INSULATION — SPECIFICATION ICS 27.220; 81.060.20

AMENDMENT NO. 1 DECEMBER 2011TO

IS 15402 : 2003 CERAMIC FIBRE BLANKETINSULATION — SPECIFICATION

(Page 2, Table 3, Note, line 2) — Substitute ‘once in a year’ for ‘once in three years’.

(CHD 27)

Reprography Unit, BIS, New Delhi, India

Page 7: IS 15402 (2003): Ceramic Fibre Blanket InsulationIS 15402:2003 Wwfb7Wm FtRFRh w * m iwiwfwafw Indian Standard CERAMIC FIBRE BLANKET INSULATION — SPECIFICATION ICS 27.220; 81.060.20

IS 15402:2003

Indian Standard

CERAMIC FIBRE BLANKET INSULATION —SPECIFICATION

1 SCOPE

This standard prescribes the requirements and themethods of samp[ing and test for high temperatureceramic fibre blanket comprising generally thermalinsulation ofalumina-silica system fibre and alumina-zirconia-silica system fibre.

When the installation or use of thermal insulationmaterials, accessories and system may pose safety orhealth problems, the manufacturers shall voluntarilyprovide the use with appropriate current informationregarding any known problems associated with therecommended use of the company’s products and shallalso recommend protective measures to be employedin their safe utilization. The use shall establishappropriate safety and health practices and determinethe applicability of regulatory requirements prior to use.

2 REFERENCES

The standards listed below contain provisions whichthrough reference in this text, constitute provisions ofthis standard. At the time of publication, the editionsindicated were valid. All standards are subject torevisions, and parties to agreements based on thisstandard are encouraged to investigate the possibilityof applying the most recent editions of the standardsindicated below:

IS No.

1335:1979

1527:1972

3069: 1994

3144: 1992

3346: 1980

9490:1980

Tide

Methods for direct determination ofalumina in refractory materials (firstrevision)

Methods for chemical analysis ofhigh silica refractory materials (jlrstrevision)

Glossary of terms, symbols and unitsrelating to thermal insulationmaterials ((first revision)

Mineral wool thermal insulationmaterials— Methods of test(second revision)

Method for the determination ofthermal conductivity of thermalinsulation materials (two slabguarded hot plate method) (j7rstrevision)

Method for determination of thermalconductivity of insulation materials(water calorimeter method)

IS No. Title

10085:1982 Methods for chemical analysis ofzircon flour or sand

12107 Methods of chemical analysis ofalumina silicate refractory materials:

(Part 5) :1987 Determination of titanium

(Part 6): 1987 Determination of iron

14656:1999 Ceramic fibre products — Methodsof test

3 TERMINOLOGY

For the purpose of this standard, the definitions of terms,symbols and units given in IS 3069, IS 14656 and thefollowing shall apply.

3.1 Ceramic Fibre —A generic term used for alum ino-silicate tibre. Other inorganic material like zirconia maybe added for better properties. It is also termed asrefractory ceramic fibre (RCF).

3.2 Classification Temperature — It is the highesttemperature in “C at which the linear shrinkage is lessthan 4 percent.

4 CLASSIFICATION

4.1 Types

The product is of two types:

a)

b)

Type I—Zirconia or non-zirconia basedmaterial with a classification temperature of 1260 “C, and

Type 11—Zirconia or non-zirconia basedmaterial with a classification temperature of 1430° c.

4.2 Grade

The product is separated into following four grades forall types, based upon its bulk density:

Grade Nominal Bulk Densi~,kg/m3

64 64

96 96128 128

160 160

5 REQUIREMENTS

5.1 Description

The material shall be soft inorganic refractory fibres

1

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1S 15402:2003

made by melting alumina and silica followed bytibrisation either by blowing the melt or by drawingthe melt over a set of spinning wheels. Zirconia (ZrO,)shall be added alongwith alumina and silica to improvethe properties in case of Type 11and Type 111materials.

5.1.1 The blankets shall be needled type with the samefibers.

5.2 Bulk Density

The bulk density of the material, when tested inaccordance with the method prescribed in 11of IS 14656, shall conform to the requirement of 4.2with allowable tolerance of– 10 percent, + 30 percenton the manufacturer’s declared value based on nominalthickness.

5.3 Shot Content

The shot content of the material when sieved through210 micron sieve, shall not be more than 30 percentwhen determined in accordance with the methodprescribed in 7 of IS 14656.

5.4 Linear Shrinkage

When tested according to 9 of IS 14656, linearshrinkage of the material shall not be more than thevalues given in Table 1.

Table 1 Linear Shrinkage, Percent, Maximum

(Clause 5.4)

S1No. Temperature Type 1 Type 11

“c

(1) (2) (3) (4)

i) 1000 1.5 1.0

ii) 1200 3.5 3.0

iii) 1400 — 4.0

5.5 Tensile Strength

When tested in accordance with 8 of IS 14656 thematerial shall have minimum tensile strength valuegiven in Table 2.

Table 2 Tensile Strength

(Clause 5.5)

S1 No. Bulk Density Tensile Strength,kg/m’ Longitudinal Direction

kPa

(1) (2) (3)

O 64 15

ii) 96 20

iii) 128 40

iv) 160 50

NOTE — For blown material 60 percent of the specified valuesshall be considered.

5.6 Fibre Diameter

The mean fibre diameter of the material when testedaccording to 6 of IS 14656 shall be 2.0 to 4.0 microns.

5.7 Thermal Conductivity

Thermal conductivity or K-value of the material shallnot exceed the values given in Table 3 when tested inaccordance with IS 3346 or IS 9490. Further in case ofdisputes the method shall be refereed to IS 3346.

5.8 Chemical Composition

The material shall conform to the requirements givenin Table 4 when tested in accordance with the methodsgiven inCO15 of Table 4.

5.9 Dimensions

The blankets shall be supplied in rolls in width of

Table 3 Thermal Conductivity in W/mK, Maximum

(Clause 5.7)

S1 No. Mean Bulk Density, kg/m’Temperature

A.- -

“c 64 96 128 160

(1) (2) (3) (4) (5) (6)

i) 200 0.089 0.078 0.076 0.076

il) 300 0.105 0.096 0.081 0.080

iii) 400 0.138 0.128 0.I22 0.120

iv) 500 0.173 0.160 0.150 0,145

NOTE — It would be sufficient to have representative product type tests for K-valueon appropriatespecimenscorrespondingtoproductand densityof the materialsuppliedonce in threeyearsor as agreedto betweenthe customerandthe supplier,to ensurethatconformitywith the requirementsof the specificationis maintained. The composition may be indicated by tibre diameter, shotcontent, density, etc.

2

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IS 15402:2003

Table 4 Chemical Composition

(Clause 5.8)

S1 No. Characteristics Type of Material Methods of Test,A Ref to IS No./

I 11

(1) (2) (3) (4) (5)

O Alumina content, as AljOl, percent 41-48 29-37 1s 1335

ii) Silica content, as S102, percent 49-58 42-57 IS 1527

iii) Zirconium oxide, M ZrOz, percent o-7 13-18 1S 10085

iv) Iron oxide (as FezO,), percent, Max 0.1 0.1 IS 12107 (Part 6)

v) Titanium dioxide (as TiOJ, percent, Max 0.3 0.3 IS 12107 (Part 5)

vi) Others (by ditTerence), percent, Max 1,0 I .0 —

vii) Leachable chlorides (as CI) percent, Max 0.0020 0.0020 Is 3144

305, 610, 1220 mm and length of3 650, 3810, 7300,7320,7620 mm and thickness of6, 9, 12, 19,25,38,50 mm or as agreed to between the purchaser and thesupplier. However, the tolerance on dimensions shallbe as per Tables 5,6 and 7.

Table 5 Width of Blanket Rolls

(C/ause 5.9)

S1 No. Width Tolerance, Percentmm

(1) (2) (3)

i) 305 -2+ 10

ii) 610 -2+ 10

iii) 1220 -2+ 10

Table 6 Length of Blanket Rolls

(Clause 5.9)

S1No. Length Tolerance, Percentmm

(1) (2) (3)

O 3650 -o

ii) 3810 -o

iii) 7300 -o

iv) 7320 -o

v) 7620 -o

Table 7 Thickness of Blanket Rolls

(Clause 5.9)

S1 No. Thickness Tolerance, mmmm

(1) (2) (3)

O 6.0 +6

-3

ii) 9.0 +9

-3

iii) 12.0 + 12

-3

iv) 19.0 + ]9

-3

v) 25.0 + 19

-3

vi) 38,0 + 19

-3

vii) 50.0 + 19–6

6 PACKING AND MARKING

6.1 Packing

The material shall be packed in waterproof polythenebags which shall be further encased in card boardcartons or as specified/agreed to between the supplierand the purchaser.

6.2 Marking

The packages shall be legibly and indelibly marked withthe following information:

a) Name of material;

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w. .,11, .-, . . . . ..—— —‘j

1S 15402:2003

b)

c)

d)

e)

Indication of the source of manufacture;

Apparent density of the material;

Length, width and thickness of material; and

Batch number.

6.3 131SCertification Marking

6.3.1 The product may also be marked with theStandard Mark

6.3.1.1 The use of the Standard Mark is governed by

the provisions of the Bureau of Indian Standards Act,1986 and the Rules and Regulations made thereunder.The details of conditions under which the licence forthe use of the Standard Mark may be granted tomanufacturers or producers maybe obtained from theBureau of Indian Standdrds.

7 SAMPLING

Representative samples of the material shall be drawnand their conformity determined in accordance withthe method prescribed in Annex A.

ANNEX A

(Clause 7)

SAMPLING OF CERAMIC FIBRE BLANKET

A-1 SAMPLING

A- 1.1 Lot

All the material of the same density produced underessentially the same conditions of manufacture shallbe grouped and each such group shall constitute aseparate lot.

N(3TE — The purchaser and the supplier may mutually agree10 term the material manufactured during a certain period as a101.[t is recwnmended that an 8 h production under essentiallysame coalitions may bc termed as a lot.

A-2 DETERMINATION OF SAMPLE SIZE

A-2.1 Tests for the conformity to the requirements ofthe specification shall be done on each lot separately.The material to be selected from a lot shall be inaccordance with Table 8.

A.2.2 These rolls shall be selected at random from thelot and to ensure randomness of selection, randomnumber tables shall be used. In case such a table innot available, the following procedure may beadopted:

Starting from any roll in the lot, count them as

1,2,3 ........... upto r and so on, where r is theintegral part of N/n (N being the lot size and nbeing the number of roll to be selected). Everyrth roll thus counted shall be withdrawn fromthe lot to give samples for tests.

A-3 NUMBER OF TESTS

A-3.1 From each of roll selected according to A-2.2test specimens necessary for carrying out the varioustests specified in this standard shall be taken, care beingexercised to exclude some amount of wool from thetop of the roll.

A-3.2 Tests for the determination of all characteristicsspecified in this standard shal I be conducted on eachof the test specimens drawn from the roll as obtainedunder A-3.1.

A-3.3 Criteria for Conformity

The lot shall be declared as conforming to therequirements of this specification, if the different testresults obtained under A-3.2 meet the correspondingrequirements given in the standard individually.

4

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[S 15402:2003

Table8 Number of Rolls to be Selected for Sampling

(Clause A-2. 1)

S1 No. Clause No. Lot S@e (N)of this Standard Af \

up to 200 201 to 500 501to 1000 1000 and above

(1) (2) (3) (4) (5) (6)

+––-–No. of rolls to be selected (n)---–+

O 5.2 5 6 8 10

ii) 5.3 +––-–One for eaclr density for all lot size -–--q

iii) 5.4 do

iv) 5.5 do

v) 5.6 do

vi) 5.7 do 1)

vii) 5.8 do

viii) 5,9 5 6 8 10

‘) Type test once in three year (see Note under Table 3).

5

..

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IS 15402:2003

ANNEX B

(Foreword)

COMMITTEE COMPOSITION

Thermal Insulation Sectional Committee, CHD 27

Organization

[H personal capacity (B-138. Sarita Vihar, New Delhi)

BASF India Limited, Mumbai

Bakelite t Iylam Limited, Mumbai

Bcarciscll Li]mited, Chennai

131IEL, Hyderabad

Central Building Research Institute, Roorkee

Department of Coal (Ministry of Industries), New DelhiDepartment of Industrial Policy & Promotion, New Delhi

Engineers India Limited, New Delhi

Iiyderabad Industries Limited, Ballabgarh

Indian Oil Corporation Limited (R&P Division), New Delhi

Lloyd Insulation (India) Limited, New Delhi

Mctallorgical and Engineering Consultants (India) Limited, RanchiMinistry of Power (CEA). New Delhi

Miowool Rock Fibres, Mumbai

National Physical Laboratory, New Delhi

NTPC, New Delhi

Newkem Products Corporation, Mumbai

Nuclear Power Corporation, Mumbai

Petroleum Conservation and Research Association, Debra Dun

PI13C0 Limited, New Delhi

Projects & Development (India) Limited, Sindri

Punj Sons Pvt Limited, New Delhi

ROSO, Lucknow

Steel Authority of lndia Limited, Ranchi

‘ICE Consulting Engineers Ltd, Chennai

(J.1’. ‘rwiga Fibreglass Limited, New Delhi

BIS Directorate General

Representative(s)

PROFB. C. RAYCHAUDHURJ(Chairman)SHRID. R. THOSE

SHJUS. N. PAL (Alternate)SHRJP. ROY

SHIUP. R. KAVERIAPPA(AlternateI)Smu T. R. GHOSH(Alternate 11)

SW A.V.RAMALINGANSHRIK. R. S. NAIK (Alternate)

SHRIR. SANKAWNStrsr RAVINDRAPRAKASH(Alternate 1)

Strru S. S. PHOGAT(Alternate II)DR B. M. SUMAN

DR lSHWARCHAND (Alternate)

DULECTORSHRIN. C. TIWARI

SscN S. K. JAIN(Alternak)

SHJUB. K. RAUTSHRJR. NANDA (A[terrrute)

SHRI D. TRIVEDISHIUS. JAGADESHWARIAH(Alternate)

SHJUM. P. CtDTRESHiUSOVNATH(Alternate)

SHJUN. SRINIVASSHRIC, P. KHANNA(Alternate)

SHRIM. K. CHOURiSIA’Sw J. P. KARDUM

Strru D. K. GILHOTRA(Ahernate)SHRIR. K. BADRUKA

SHJUANURAGSHARMA(Alternate)DR HAJUKLSHAN

SW R. B. SAXENA(Alternate)

SHRJR. K. SINGHALSJDUJADAVDATTA(Alternate)

SHRINIMSSHV. SURASHRJV. A. SURA(Aliernafe)

Srrm S. A. BOHRASHIUS, K. RASTOGI(A@nate)

SHJUTAPANDOITASHJUK. K. BHATNAGAR(Alternate)

SHRIT. UDAYKUMARSHJUA. K. SEN(Alternate)

SJOUK. KARKUNDR S. P. S. KHALSA(Alternate)

SHRJR. P. PUNJ%ou GA~V PUNI(Alfernate)

SHJUD. R. GUPTASHRIA. K. CHAUDHURI(Alternate)

SHNM. S. MUKHOPADHVAYSHRID. P. CHAKRABORTY(Ahernafe)

SHRIR. V. RAhIACHANDRANSHRJD. PADMANABHA(Alternate)

SHIUAJAYGUFTASHsr RAHULSOOD(Alfernafe)

Smu S. K. CtrAurnruru, Director and Head (CHD)[Representing Director General (Ex-oflcio)]

Member SecretarySHRIN. K. PAL

Director (CHD), BIS

(Continuedonpage 7)

6

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IS 15402:2003

(Co}f[inaed~rom page 6)

Codes of Practice for Application of Thermal Insulation Materials Sub-committee, CHD 27:5

Organization Representative(s)

Engineers India Limited, New Delhi

I Iydcrabad Industries Limited, Ballabhgarh

Indian Oil Corporation. Limited (R&P Division), New Delhi

Lloyd Insulation (India) Limited, New DelhiLloyd Projects Pvt Limited, New Delhi

Ministry of Power, New Delhi

Minwcml Rock Fibres Limited, Hyderabad

National Fire Service College, NagpurNcwkcm Products Corporation, Mumbai

1)1)1l.. Sindri

Punj Sons Pvt Limited. New Delhi

Rcliancc llldUW’ieS Limiled,MunlbaiSons Fihres. Bhaboagar

Super Urethane Products Pvt Ltd, New Delhi

‘1’ataConsulting Engineers, Mumbai

(J. P. ‘Twigs Fihreglass Limited, New Delhi

Lloyd Insulation (India) Ltd, New Delhi SHRJN, SRJNIVAS(Convener)fJASF Iodia Limited, Mumbai SHRIB. JOSHI

Ilbarat Heavy Electrical Limited, Hyderabad Wro RAWNDRAPRAKASHSHRJA. V. N ARASINGARAO(A hernate)

t3akclite Flylam Limited, Hyderabad SHRIP. P. KAVERIAPPA

SHRJH. SITARAM(Ahermate I)

SHRIP. ROY (Alfernafe 11)

SHIUS. RAINA(Alternate 111)

SHRIB. K. ROUTSHRJR. NANDA(Alternate)

SHRIA. K. GOFTASHRJA. KATOCH(AIfernafe)

SHRJM. P. CHJTRESHRJSOVNATH(Alternale)

SHRJK. C. SHARMASHRJ0. P. HABOLA

SHRJP. S. RAJAN(Alfernate)

SHRIJ. P. KARDAMASHRID. K. GHUHOTRA(Alternate)

SHRI R. K. BADRIJKASHRJP. B. MAHESH(Alternate)

SHRI K. DAS GUPTASHRJN. V. SURA

SHRIV. A. SURA(Alternate)SHRJB. K. JfIA

SHRJA. P. SINHA(Alternate)

SHJOR. P. PUNJSHRIGAURAVPUNJ(Ahernafe)

REPRESENTATIVE

SHRIH. V. SHAHSHRIA. K. LUTIIRA

SHRIPREMCHANO(Alternate)

SHRIR. V. RAMACHANDRANSNRID. PADMANABHA(Aherrrate)

SHRJAJAYGUFTASHRJS. BANSAL(Alternate)

7

..

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Bureau of Indian Standards

BIS is a statutory institution established under tt?e Ilureuu of hrdiqn Slandurdf Act, 1986 to promote harmonious

development of the activities of standardization, marking and quality certification of goods and attending toconnecttxh matters in the country.

Copyright

BIS has the copyright of all its publications. No part of these publications may be reproduced in any form

without the prior permission in writing of BIS. This does not preclude the free use, in the course of implementingthe standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating tocopyright be addressed to the Director (Publication), BIS.

Review of Indian Standards

Amencilnents 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 Standards

should 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’.

“Ilis Indian Standard has been developed from Dot: No. CHD 27 (858).

Amendments Issued Since Publication

Amend No. Date of Issue Text Affected

BUREAU OF INDIAN STANDARDS

Headquarters:

Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002 Telegrams: ManaksansthaTelephones: 23230131,23233375,2323 9402 (Common to all offices)

Regional Ofilces: Telephone

Central :

Eastern :

Northern :

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Branches :

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23237617NEW DELHI 110002 23233841

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603843609285

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{

28329295,28327858MUMBAI 400093 28327891,28327892

AHMEDABAD. BANGALORE. BHOPAL. BHUBANESHWAR. COIMBATORE. FARIDABAD.GHAZ[ABAD. GUWAHAT[. HYDERABAD. JAIPUR. KANPUR. LUCKNOW. NAGPUR.NALAGARH. PATNA. PUNE. RAJKOT. THIRUVANANTHAPURAM. VISAKHAPATNAM.

Printed at Simco Printing Press, Delhi

“.


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