ISO INTERNATIONAL STANDARD 17639 Second edition 2022-01 Destructive tests on welds in metallic materials Macroscopic and microscopic examination of welds Essais destructifs des soudures sur materiaux metalliques - Examens macroscopique et microscopique des assemblages soudés Reference number IS0 17639:2022(E) Copyright Intern ISO2022 IS0 17639:2022(E) COPYRIGHT PROTECTED DOCUMENT @ISO2022 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 or IsoO'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 Copyigh illemational Organizationfor Standardization @ IS0 2022 - All rights reserved