ISO INTERNATIONAL STANDARD 6179 Fifth edition 2017-07 Rubber, vulcanized or thermoplastic Rubber sheets and rubber-coated fabrics Determination of transmission rate of volatile liquids (gravimetric technique) Caoutchouc vulcanisé ou thermoplastique Feuilles de caoutchouc et supports textiles revetus de caoutchouc - Détermination du taux de transmission des liquides volatils (technique gravimétrique) Reference number IS0 6179:2017(E) os1 International Organization for Standardization @ IS0 2017 HEJIANG INST OF STANDARDIZATION C1 5956617 ed without license from IHS IS0 6179:2017(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax+412274909 47 copyright@iso.org www.iso.org Intenationai br PrganizationforStandardization icensee-ZHEJIANG INST OF STANDARDIZRoISQ s1.7 - All rights reserved Not for Resale, 2017/9/27 06:04:07 etworking permitted without license from IHS IS0 6179:2017(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Apparatus 5 Calibration ..2 6 Testpieces .2 6.1 Preparation .2 6.2 Thickness measurement .3 6.3 Numberoftestpieces .3 7 Time-interval between vulcanization and testing ..4 8 Conditioning ..4 9 Test conditions ..4 9.1 Temperature .4 9.2 Duration of test .4 10 Procedure. .5 10.1 Preliminary operations .5 10.2 Method A .5 10.3 Method B .5 11 Expression of results ..6 11.1 Method of calculation ..6 11.2 Graphical method. 12 Test report Annex A (normative) Calibration schedule .7 Bibliography .9 iii see=ZHEJIANG INST OF STANDARDIZATION C15956617 ithout license from IHS