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“Invent a New India Using Knowledge”

है”ह”ह

IS 11239-1 (2009): Methods of Test for Rigid CellularThermal Insulation Materials, Part 1: Dimensions [CHD 27:Thermal Insulation]

IS : 11239 ( Part 1 ) - 1985

Indian Standard

METHODS OF

TEST FOR RIGID CELLULAR THERMAL INSULATION MATERIALS

PART 1 DIMENSIONS

Thermal Insulation Materials Sectional Committee, CDC 37

Chairman Representing

DIL LL C. RAYCHAU~H~RI Indian Institute of Technology, Delhi

Members

SHRI U. C. AGRAWAL Synthetic Foams Ltd, New Delhi SHI~I RA.J~~EVA KANSAL ( illtemale )

CHEMIST & ME.I.ALLUI~CIST RDSO ( Ministry of Railwa1.s ), Lucknow ASSTT RICSEAI~CH OFFIWR

( CM-II ) ( Alternafe ) SHRI N. N. COYAL Fibreglass Pilkington Lrd, Ecmba!-

SliltI C. K. ‘~A RLALL ( ,&r?lale ) SIIIZI A. I~. CUPTA Hyderabad Asbestos Gmrnt Prcducts Lrd, Hyderabad SHRI K.V. GUHUBWAMY Indian Oil Corporation, New Delhi

SHll I R. f;. I.AICHANPAL ( A~k%~t~ ) SHIIT A. V. HINCOI~ANI Steel Authority of India Ltd, Ranchi

S,ll<I B. S. VAT\‘liAl..\ll,\DII.\~I ( 24&rflUte ) S,rn1 I. K. KAPoon Directorate General of Trchnical Development,

New Delhi SH~I K. V. Smml\TIr ( .Iltcr~te )

SIII~I A. S. R. RI~IRTII\- Ministry of Energy SJll<l S. hf. c. PTLLAI National Thermal I’oxvcr (:orpordtiun. New Delhi

S~tnr KnnT Gear. ( Allrrnate ) Dn M. PIL.ZSA~ Central Mechanical Engineering Research Institute

( CSIR ), Durgnpur

SHRI J. K. CHOPIN.\ ( Allerna!e ) Punj Sons Pvt Ltd, New Dc,lhi

SHRI I’. K. Rr:n~)y Mettur Eesrdsrll Ltd, Madras SHITI S. RAVINJ,I~AN ( Altamale )

Urt. H. C. Roy Projects 8; Development India Ltd, Sin&i SHHI s. I'. s. ~XALSA ( tlk?tXQte )

SHIII R. SRANKAI~AN Bharat Heavy Elrctricals I,td, Hyderabnd SH~I D. S. UPA~IIYA-J~.~ ( Alternnle I j SHRI U. I;. DCJIWY ( Allernale II 1

( Continued on Page 2 :

@ Cqyrighl 1985

INDIAN STANDARDS INSTITUTION

This publication is protected under the Indian Cofiyright Act ( XIV of 1957 ) and reproduction 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 : 11239 ( Part 1 ) - 1985

( Continued,from page 1 )

Members Representing

DR G. K. SHAR~A Indian Institute of Technology, Bombay SJJHI N. SHINIVAS Lloyd Insulations ( India ) l’vt Ltd, New Delhi

SHRI C. P. KHANNA ( Alter~nte ) SJIRI M. BAI,A SUUI~AMANIAM BASF India Ltd, Bombay

SJrltr R. N. GANJOO I Alternate 1 s,m,-v. n. SUJL\ ‘Newkem Products Corporation, Bombay SJJRI NlnzJaJr V. S~J~A ( Ahernate)

SHIRT T. UJ)APAKUMAR PIBCO Ltd, New Delhi SHRIMATI U. Roy ( Alternate )

DJX V. V. VJiRXA Central Building Research Institute ( CSIR ), Roorkee

SJJRI S. P. JAW ( Memale) SHllI v. 1’. WASAN National Physical Laboratory, New Drlhi

Srrt:r K. N. BJIATNAQAR ( Alternate) STIltI SATRJli (:JIANI)l?!(, Director General, IS1 ( Eu-ojjicio Member )

Director ( Chem )

Secretary

Slrnr P. S. AROIXA

Senior Deputy Director ( Chem ), IS1

Panel for Terminology and Methods of Test for Thermal Insulation, CDC 37 : Pl

Cozener

DR Il. C. RAYCIIAU~H~~I:I Indian Institute of Technology, New Delhi

Members

Dn K. N. i\~AIt\V,\L Central Building Research Institute ( CSIR ), Roorkee

DR V. V. Ven,n~ ( &err&e ) SJIRI u. c. AC~IO~WAL Synethetic Foams Ltd, New Delhi

SJUJ~I RAJWWA K.\N~AL ( Alternafe ) SIII:I A. K. GUPTA Hyderabad Asbestos Cement Products Ltd,

Hyderabad SJJRI M. S.\l\rs~srva Rao ( Alternate )

~JIRID.K.I~AN~N~O National T,est House, Calcutta SHRI TJ~IDIL CHAUDHUI~Y ( Alternate )

SIII~I R. P. PUNJ l’unj Sons Pvt Ltd, New Delhi SJxJtI J. K. Cao~~aa ( Alternote )

SHH[ R. SITNI(ARZN Bharat Heavy Electricals Ltd, Hyderabad DR S. K. SJJARXA Project & Development India Ltd, Sindri

SIII~I 1~. K. .JHA ( Alternate ) Srinr G. K. SlIAltMA Indian Institute of Technology, Bombay SJmr T. UI)AYAKUM.\R PIBCO Limited, Calcutta

SJJJ~IM.~~TJ U. ROY ( Alternate ) Sri,11 V. 1’. WASAN National Physical Laboratory ( CSIR ), New Delhi

SJIRI K. N. RJihrl‘N4c..tn ( Altermte )

2

IS : 11239 ( Part 1 ) - 1985

Indian Standard

METHODS OF TEST FOR RIGID CELLULAR

THERMAL INSULATION MATERIALS

PART 1 DIMENSIONS

0. FOREWORD

0.1 Tliis Indian Standard ( Part 1 ) was adopted by the Indian Standards Institution on 28 February 1985, after the draft finalized by the Thermal Insulation Materials Sectional Committee had been approved by the Chemical Division Council.

0.2 The methods of test described in this standard and its other parts ;rre intended to apply to cellular products of polymeric origin, but they are not necessarily suitable for testing cellular materials of inorganic origin.

0.3 Many rigid cellular products and test specimens are not isotropic. ‘This is usually ascribed to the fact that the cells in the material are elongated in a ‘direction of anisotropy’. Tests carried out in this direction usually give results differing in magnitude from those carried out in the other directions. It should be noted that the direction of anisotropy may vary from place to place in a product. Hence, the ntrmber of test specimens required in the product specifications may be greater than those given here.

0.4 In the preparation of this standard, considerable assistance has been tlrawn from IS0 1923-1972 ‘Rigid Cellular Plastics -- Determina- tion of Linear Dimensions’, issued by International Organization for Standardization.

0.5 In reporting the result of a test or analysis made in accordance with this standard, if the final value, observed or calculated, is to be rounded off, it shall be done in accordance with IS : 2-1960*.

1. SCOPE

1.1 This standard ( Part 1 ) prescribes the method for determination of linear dimensions of rigid cellular thermal insulation materials.

*Rules for rounding off numerical values C revised ). 3

IS : 11239 ( Part 1 ) - 1985

2. TERMINOLOGY

2.1 For the purpose of this standard, the difinitions given in IS : 3O69- 1965* and the following shall apply.

2.1.1 Linear Dimension - The shortest distance, measured with an instrument in accordance lvith 3, between two specific points, betwren two parallel lines or between two parallel planes, defined by corners, edges or surfaces of the specimen.

3. APPARATUS

3.1 Micrometer - Having a measuring surface with a minimum diameter of 5 mm, but in any case not less than five times the average diameter of the cells, permitting reading to an accuracy of 0.05 mm ( for test specimens only ).

3.2 Sliding Caliper - With a vernier, permitting reading to an accuracy of O-1 mm.

3.3 Metal Rule or Metal Tape - Graduated in millimetres and permitting reading to an accuracy of 0 5 mm.

4. NUMBER OF MEASUREMENTS

4.1 The number of measuring locations depenci on the size and shape of the specimen, but shall be at least five. The locations shall be as widely separated as possible, in order to give a good average. The median of three readings at each position shall be taken and the average of five or more median values calculated.

5. PROCEDURE

5.1 Measurement with Micrometer --- For linear dimensions equal to or less than 10 mm, a micrometer shall be used. Apply the micro- meter to the specimen taking care so that no distortion or damage to the surface of the specimen is caused. Bring the plane surfaces of the micrometer continuously together, simultaneously moving the specimen slightly back and forth until a shght resistance to the movement is felt. Take this reading and round off to the nearest 0’1 mm.

5.2 Measurement with Sliding Caliper - Sliding caliper shall be used for linear dimension more than 10 mm but less than or equal to 100 mm. -Apply a previously set vernier caliper so that the specimen is not distorted or damaged. Take the reading when the measuring faces of the caliper are in contact with the two surfaces of the test specimen without compressing it. Round off the reading to the nearest 0.2 mm. ________~

*Glossary of terms, symbols and units relating to thermal insulation materials.

4