ISO INTERNATIONAL STANDARD 3834-1 Third edition 2021-09 Quality requirements for fusion welding of metallic materials - Part 1: Criteria for the selection of the appropriate level of quality requirements Exigences de qualité en soudage par fusion des materiaux metalliques Partie 1: Criteres pour la selection du niveau approprié d'exigences de qualite Reference number ISO 3834-1:2021(E) ISO @ ISO 2021 IS0 3834-1:2021(E) COPYRIGHTPROTECTED DOCUMENT IS02021 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 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 CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2021 - All rights reserved