s Institution 2013 BS ISO 7539-11:2013 BSl Standards Publication Corrosion of metals and alloys Stress corrosion cracking Part 11: Guidelines for testing the resistance of metals and alloys to hydrogen embrittlement and hydrogen-assisted cracking bsi. ..making excellence a habit. BRITISH STANDARD BS ISO 7539-11:2013 Nationalforeword This British Standard is the UK implementation of ISo 7539-11:2013. The UK participation in its preparation was entrusted to Technical Committee ISE/NFE/8, Corrosion of metals and alloys. A listof organizationsrepresented on this committeecanbe obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @The British Standards Institution 2013.Published by BSI Standards Limited 2013 ISBN9780580711718 ICS 77.060 Compliance with a British Standard cannot confer immunity from legalobligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2013. Amendments issued since publication Date Textaffected BS ISO 7539-11:2013 INTERNATIONAL ISO STANDARD 7539-11 First edition 2013-04-15 Corrosion of metals and alloys - Stress corrosion cracking - Part 11: Guidelines for testing the resistance of metals and alloys to hydrogen embrittlement and hydrogen: assisted cracking Corrosion desmetauxetalliages-Essaidecorrosion sous contrainte Partie11: Lignesdirectricespour les essais de résistance des metaux etalliages a la fragilisationparI'hydrogene et la fissuration assistee sous hydrogene Reference number IS0 7539-11:2013(E) TSO @ISO2013 The British Standards Institution 2013 BS ISO 7539-11:2013 IS0 7539-11:2013(E) / of Huddersfield, University of Huddersfield, COPYRIGHTPROTECTEDDOCUMENT @ IS0 2013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form University 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 Case postale 56. CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Copy: Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Licensed Published in Switzerland ii IS02013-All rights reserved (c) The British Standards Institution 2013 BS ISO 7539-11:2013 IS0 7539-11:2013(E) Contents Page Foreword ..iv 1 Scope. ..1 2 Normative references 3 Factorstobeconsidered in hydrogenembrittlementand hydrogen-assisted cracking testing. .1 .1 3.1 Dynamic plastic straining 3.2 Testtimeand hydrogen uptake 2 3.3 Temperature .2 4 Selection of test method ..3 4.1 General. 3 4.2 Specimen type .3 4.3 Test duration .3 4.4 Load form .8 4.5 Pre-chargingand hydrogen effusivity .12 4.6 Testing of welds. .12 5 Post-test evaluation. .13 Bibliography .15 @IS0 2013 -All rights reserved ili Institution2013 BS ISO 7539-11:2013 IS07539-11:2013(E) Foreword ndards Iso (the International Organization for Standardization) isa worldwidefederation of national standards bodies (IsO member bodies). The work of preparing International Standards is normally carried out lel through Iso technical committees.Each member body interested in a subject for which a technical S committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with Iso, also take part in the work. S Iso collaborates closely with the International Electrotechnical Commission (IEC) on all matters of 11 electrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISo/IEc Directives, Part 1. In particular the different approval criteria needed for the different types of Iso documents should be noted.This document was drafted in accordance with the editorial rules of theISO/IEC Directives, Part2.www.iso.org/directives Attention is drawn totheposs