Transportablegascylinders-Compatibilityof cylinderandvalvematerialswithgascontents
Part 4: Test methods for selecting steels resistant to hydrogen embrittlement
Nationalforeword
It is identical to ISO 11114-4:2017. It supersedes BS EN ISO 11114-4:2005 This British Standard is the UK implementation of EN ISO 11114-4:2017.which is withdrawn.
The UK participation in its preparation was entrusted to Technical Committee PVE/3 Gas containers.
request to its secretary. A list of organizations represented on this mittee can be obtained on
This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.
The British Standards Institution 2017Published by BSI Standards Limited 2017
ISBN 978 0 580 83957 3
ICS 23.020.35
legal obligations. Compliance with a British Standard cannot confer immunity from
This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June 2017.
Amendments/corrigenda issued since publication
Date
Text affected
ENISO11114-4
Supersedes EN 1SO 11114-4:2005
English Version
Transportable gas cylinders-Compatibility of cylinder and valvematerials withgascontents-Part 4:Test methods forselectingsteelsresistanttohydrogenembrittlement (ISO 11114-4:2017)
materiaux et des robinets avec les contenus gazeux - Bouteilles a gaz transportables - Compatibilite desPartie 4: Methodes d'essai pour le choix des aciers resistants a la fragilisation par I'hydrogene (ISO11114-4:2017)
Werkstoffen fir Gasflaschen und Ventile mit den in Ortsbewegliche Gasflaschen - Vertraglichkeit vonBerihrung kommenden Gasen - Teil 4: Prufverfahren zur Auswabl von Stahlen die gegenWasserstoffversprodung unempfindlich sind (ISo11114-4:2017)
This European Standard was approved by CEN on 8 December 2016.
CEN members are bound to ply with the CEN/CENELEC Intermal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical referencesconcerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENmember.
This European Standard exists in thre offcial versions (English French German). A version in any otherlanguage made bytranslation under the responsiblity of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
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CEN-CENELEC Management Centre: Avenue Marnix 17 B-10o0 Brussels
Europeanforeword
This document (EN ISO 11114-4:2017) has been prepared by Technical Committee ISO/TC 58 "Gascylinders" in collaboration with Technical Committee CEN/TC 23 "Transportable gas cylinders" the secretariat of which is held by BSI.
identical text or by endorsement at the latest by October 2017 and conflicting national standards shall e jo uond q aa epus geou e jo snes a ua aq nus peps ueadong sbe withdrawn at the latest by October 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject ofpatent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 11114-4:2005.
a pue uossu ueadong a q N uaa8 aepueu e apun paedad uaaq seq suanop s European Free Trade Association.
following countries are bound to implement this European Standard: Austria Belgium Bulgaria According to the CEN-CENELEC Internal Regulations the national standards organizations of theCroatia Cyprus Czech Republic Denmark Estonia Finland Former Yugoslav Republic of Macedonia France Germany Greece Hungary Iceland Ireland Italy Latvia Lithuania Luxembourg Malta Netherlands Norway Poland Portugal Romania Serbia Slovakia Slovenia Spain Sweden Switzerland Turkey and the United Kingdom.
Endorsement notice
The text of ISO 11114-4:2017 has been approved by CEN as EN ISO 11114-4:2017 without anymodification.
Contents
Page
Foreword ivIntroduction. V1 Scope. 12 Normative references. 13 Terms definitions symbols and abbreviated terms. Terms and definitions. 23.1 3.2 Symbols and abbreviated terms. 24 General requirements. 35 Test methods. Disc test (method A) 45.1 5.1.1 Principle of test.. 45.1.2 5.1.3 Test conditions and procedure. Treatment and interpretation of test results. 6 45.1.4 Failure in conducting test.. Test report. 75.2 Fracture mechanics test (method B). 5.1.5 10 75.2.2 5.2.1 Principle of the test method. Test procedure. 10 105.2.3 Test results. 145.3 Test method to determine the resistance to hydrogen assisted cracking of steel cylinders (method C). 145.3.1 5.3.2 Specimen configurations and numbers of tests. General. 14 15Fatigue precracking 155.3.4 5.3.5 Test procedure. Specimen testing procedure. 16 155.3.6 5.3.7 Crack growth examination. Cylinder material qualification. 16 175.3.8 Failure in conducting test. 175.4 Tensile tests. 5.3.9 Test report. 17 17Bibliography. 18
