ISO INTERNATIONAL STANDARD 6529 Third edition 2013-02-15 Protective clothing Protection against chemicals Determination of resistance of protective clothing materials to permeation by liquids and gases Vetements de protection -Protection contre les produits chimiques Détermination de la résistance des matériaux utilisés pour la confection des vetements de protection a la perméation par des liquides et des gaz Reference number IS0 6529:2013(E) LSO IS02013 HS under Not for Resale IS0 6529:2013(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 Case postale 56:CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2013 - All rights reserved No reproductic networking permited without license from IHS Not for Resale IS0 6529:2013(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. .1 2 Normative references 3 Terms and definitions ..2 4 Principle ..5 5 Choice of analytical technique and collection medium .5 5.1 General .5 5.2 Gaseous collection media ..5 5.3 Liquid collection media .6 5.4 Other collection media. ..6 6 Apparatus. ..6 7 System configuration 7.1 Open-loop. ..8 7.2 Closed-loop ..9 8 Detection ..11 8.1 Frequency of analysis ..11 8.2 Analytical methods.. .11 9 Sampling ..12 9.1 Sampling procedure .12 9.2 Preparation of test specimens .13 9.3 Measurement of test specimen thickness and mass .13 10 Procedure. ..13 10.1 Pre-screening .13 10.2 Calibration .13 10.3 Validation. .14 10.4 Preparation of test apparatus .14 10.5 Method A Liquid chemicals with continuous contact ..15 10.6 Method B- - Gaseous chemicals with continuous contact .16 10.7 Method C - Liquid or gaseous chemical with intermittent contact. .18 10.8 Calculation of results 19 10.9 Visual assessment of test specimen .22 10.10 Repeattests 22 11 Report .24 Annex A (informative) Recommended list of chemicals for comparing permeation resistance of protective clothing materials .26 Annex B (informative) Sources of permeation test cells and permeation test cell parts .29 Annex C (informative) Designs and specifications of commonly-used permeation test cells. .31 Annex D (informative) Suggested procedures for calibrating and measuring the sensitivity of permeation-test systems. .35 Annex E (informative) Testing the permeation resistance of seams and closures ..39 Annex F (normative) Default conditions for testing and reporting permeation resistance ..42 Annex G (informative) Inter-laboratory and inter-sample variation ..43 Bibliography .45 iii se with ISt ed without license from IHS Not for Resale