ISO INTERNATIONAL STANDARD 13919-1 Secondedition 2019-10 Electron and laser-beam welded joints Requirements and recommendations on quality levels for imperfections - Part 1: Steel, nickel, titanium and their alloys Assemblages soudés par faisceau d'électrons et par faisceau laser - Exigences et recommandations sur les niveaux de qualité des defauts- Partie 1: Acier, nickel, titane et leurs alliages Reference number ISO 13919-1:2019(E) os1 @ IS0 2019 IS0 13919-1:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2019 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: +4122 749 0111 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved