ISO INTERNATIONAL STANDARD 3834-4 Third edition 2021-04 Qualityrequirementsforfusion welding of metallic materials- Part 4: Elementary qualityrequirements Exigences de qualite en soudage par fusion des materiaux metalliques- Partie4:Exigences dequalite élementaire Reference number ISO3834-4:2021(E) ISO2021 IS03834-4:2021(E) . . . COPYRIGHTPROTECTEDDOCUMENT 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 orbyany means,electronic ormechanical, including photocopying,or posting beloworIso'smemberbodyinthecountryoftherequester. ISO copyrightoffice CP 401.Ch.de Blandonnet 8 CH-1214Vernier,Geneva Phone:+41227490111 Email:copyright@iso.org Website:www.iso.org Publishedin Switzerland ii IS02021-Allrightsreserved

ISO 3834-4 2021 Quality requirements for fusion welding of metallic materials — Part 4 Elementary quality requirements

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