ISO INTERNATIONAL STANDARD 20064 First edition 2019-07 Metallic materials Steel Method of test for the determination of brittle crack arrest toughness, Kca Materiaux métalliques - Acier - Méthode d'essai pour déterminer la ténacité a la rupture fragile, Kca Reference number IS0 20064:2019(E) @ IS0 2019 IS0 20064:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 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: +41 22 749 01 11 Fax: +4122 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland i @ IS0 2019 - All rights reserved