ISO INTERNATIONAL STANDARD 15156-3 Fourth edition 2020-11 Petroleum and natural gas industries Materials for use in H.S. containing environments in oil and gas production - Part 3: Cracking-resistant CRAs (corrosion- resistant alloys) and other alloys Industries du pétrole et du gaz naturel - Materiaux pour utilisation dans des environnements contenant de I'hydrogene sulfure (H2S) dans la production de pétrole et de gaz - Partie 3: ARC (alliages resistants a la corrosion) et autres alliages résistants a la fissuration Reference number IS0 15156-3:2020(E) ISO @ ISO 2020 IS0 15156-3:2020(E) COPYRIGHT PROTECTED DOCUMENT @IS02020 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 orIso'smemberbody inthe country oftherequester. 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 IS02020-Allrightsreserved