ISO INTERNATIONAL STANDARD 13919-2 Secondedition 2021-01 Electron and laser-beam welded joints Requirements and recommendations on quality levels for imperfections - Part 2: Aluminium, magnesium and their alloys and pure copper Assemblages soudés par faisceau d'électrons et par faisceau laser Exigences et recommandations sur les niveaux de qualite des defauts- Partie 2: Aluminium, magnesium et leurs alliages et cuivre pur Reference number ISO 13919-2:2021(E) [so @ ISO 2021 IS0 13919-2:2021(E) 1 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 or by anymeans, electronic or mechanical, including photocopying, or posting 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: +4122 749 01 11 Email:copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2021 - All rights reserved