Gascylinders-Compatibilityofcylinder andvalvematerialswithgascontents
Part 1:Metallic materials
Nationalforeword
This British Standard is the UK implementation of EN ISO 11114-1:2020. It is identical to ISO 11114-1:2020. It supersedesBS EN ISO 11114-1:2012A1:2017 which is withdrawn.
The UK participation in its preparation was entrusted to Technical Committee PVE/3 Gas containers.
A list of organizations represented on this mittee can be obtained on request to its mittee manager.
This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.
The British Standards Institution 2020Published by BSI Standards Limited 2020
ISBN 978 0 539 01290 3
ICS 23.020.35; 23.060.40
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 31 July 2020.
Amendments/corrigenda issued since publication
Date
Text affected
ENISO11114-1
Supersedes EN 1SO 11114-1:2012
English Version
Gascylinders-Compatibilityofcylinderandvalvematerialswith gas contents-Part 1:Metallic materials (ISO 11114-1:2020)
Gasflaschen - Vertraglichkeit von Werkstoffen fur Gasflaschen und Ventile mit den in Berihrungkommenden Gasen - Teil 1: Metallische Werkstoffe (ISO 11114-1:2020)
bouteilles et des robinets avec les contenus gazeux - Bouteilles a gaz - Compatibilite des materiaux desPartie 1: Materiaux metalliques (ISO 11114-1:2020)
This European Standard was approved by CEN on 11 May 2020.
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 three official versions (English French German). A version in any other language made byCentre has the same status as the official versions.
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
CEN members are the ational standards bodies of Austria Belgium ulgaria Croatia Cyprus zech Republic Denmark Estonia Finland France Germany Greece Hungary Iceland reland Italy Latvia Lithuania Luxembourg Malta etherlands NrwayPoland Portugal Republic of North Macedonia Romania Serbia Slovakia Slovenia Spain Sweden Switzerland Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FOR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23 B-1040 Brussels
Europeanforeword
This document (EN ISO 11114-1:2020) has been prepared by Technical Committee ISO/TC 58 "Gassecretariat of which is held by BSl. cylinders" in collaboration with Technical Committee CEN/TC 23 "Transportable gas cylinders" the
identical text or by endorsement at the latest by December 2020 and conflicting national standardsshall be withdrawn at the latest by December 2020.
oans a e p so s os isd aoup supatent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 11114-1:2012.
This document has been prepared under a mandate given to CEN by the European Commission and theEuropean Free Trade Association.
According to the CEN-CENELEC Internal Regulations the national standards organizations of thefollowing countries are bound to implement this European Standard: Austria Belgium BulgariaIreland Italy Latvia Lithuania Luxembourg Malta Netherlands Norway Poland Portugal Republic ofUnited Kingdom. North Macedonia Romania Serbia Slovakia Slovenia Spain Sweden Switzerland Turkey and the
Endorsementnotice
The text of ISO 11114-1:2020 has been approved by CEN as EN ISO 11114-1:2020 without anymodification.
Contents
Page
Foreword ivIntroduction. V1 Scope. 12 Normative references. 13 Terms and definitions. 14 Materials 4.1 General. 2 24.2 Valve materials. Cylinder materials. 24.3 4.3.1 General.4.3.2 Particular considerations. 3Compatibility criteria.. 5.1 General 35.2 Corrosion 5.2.1 45.2.2 Corrosion in dry conditions. General. 4 45.2.3 5.2.4 Corrosion in wet conditions. Corrosion by impurities. 4 4Hydrogen embrittlement phenomenon. 55.4 5.5 Generation of dangerous products.. Violent reactions (e.g. ignition) 5 55.6 Stress corrosion cracking 56 Material patibility. 6.1 Table of patibility for single gases 5 58'9 6.2 Compatibility for gas mixtures. Using Table 1 56.3.1 Conventions and numbers. 66.3.2 Abbreviations for materials. 6Bibliography. Annex A (informative) Gas/materials NQSAB patibility code. 3748
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