International ISO Standard ISO11611 Third edition Protective clothing for use in welding and allied processes 2024-06 vetements de protection utilisés pendant le soudage et les techniques connexes Reference number ISO 11611:2024(en) @ ISO 2024 IS0 11611:2024(en) COPYRIGHT PROTECTED DOCUMENT @ IS02024 be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on or ISO's member body in the country of the requester. ISO copyright office CP 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: copyright@iso.org Website: www.iso.org Published in Switzerland @ IS0 2024 - All rights reserved i IS0 11611:2024(en) Contents Page Foreword. Introduction .vii 1 Scope. .1 2 Normative references ..1 .2 3 Terms and definitions. .5 General and design requirements .5 4.1 General 4.2 Protective clothing. ..5 4.3 Size designation and fit 5 4.4 Additional protective garments 4.5 Pockets and flap closures.. 4.6 Closures and seams .6 ..6 4.7 Hardware. 5 Sampling and pre-treatment .6 5.1 ..6 Sampling. 5.1.1 General 5.1.2 Sampling procedure on fabric materials for the UV transmission measurement 5.2 Pre-treatment of material ..8 5.3 Ageing 5.4 Conditioning .9 General performance requirements 9 6 ..9 6.1 Classification 6.2 Tensile strength .9 6.3 .10 Tear strength 6.4 Burst strength of knitted materials and seams. .10 6.5 Seam strength. .10 6.6 Dimensional change of textile materials .10 6.7 Limited flame spread. .10 6.7.1 .10 General 6.7.2 Testing in accordance with IS0 15025:2016, Procedure A (code letter A1) ..11 6.7.3 Testing in accordance with IS0 15025:2016, Procedure B (code letter A2) ..12 6.8 ..12 Impact of spatter (small splashes of molten metal) 6.9 Heat transfer (radiation). .12 6.10 Electrical resistance.. .13 .13 6.11 Fat content of leather 6.12 Protection against UV radiation .13 Performance requirements. 6.13 ..13 Marking. 7 .14 7.1 General ..14 7.2 Procedure and examples of markings:. .. 15 8 Information supplied by the manufacturer ..16 8.1 General. .16 ..16 8.2 Intended use 8.3 .17 Improperuse 8.4 Care and maintenance .17 Test report. 9 .17 Annex A (informative) General explanations related to the UV protective characteristics of welders' protective clothing and to the measuring methods used. .18 Annex B (normative) Classification system of the type of welders' clothing (Class 1/Class 2, UV protection period class for welding process groups 'A','B'and 'C') 19 @ IS0 2024 - All rights reserved iii