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EN ISO 11114-4:2017

Current
Current

The latest, up-to-date edition.

Transportable gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 4: Test methods for selecting steels resistant to hydrogen embrittlement (ISO 11114-4:2017)
Published date

26-04-2017

Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
4 General requirements
5 Test methods
Bibliography

ISO 11114-4: 2017 specifies test methods and the evaluation of results from these tests in order to qualify steels suitable for use in the manufacture of gas cylinders (up to 3 000 l) for hydrogen and hydrogen bearing embrittling gases.This document only applies to seamless steel gas cylinders.The requirements of this document are not applicable if at least one of the following conditions for the intended gas service is fulfilled:- the working pressure of the filled embrittling gas is less than 20 % of the test pressure of the cylinder;- the partial pressure of the filled embrittling gas of a gas mixture is less than 5 MPa (50 bar) in the case of hydrogen and other embrittling gases, with the exception of hydrogen sulphide and methyl mercaptan; in such cases, the partial pressure shall not exceed 0,25 MPa (2,5 bar).NOTE In such cases, it is possible to design the cylinder as for ordinary (non-embrittling) gases.

Committee
CEN/TC 23
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current

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EN 12245:2009+A1:2011 Transportable gas cylinders - Fully wrapped composite cylinders
EN 13807:2017 Transportable gas cylinders - Battery vehicles and multiple-element gas containers (MEGCs) - Design, manufacture, identification and testing
I.S. EN ISO 9809-1:2010 GAS CYLINDERS - REFILLABLE SEAMLESS STEEL GAS CYLINDERS - DESIGN, CONSTRUCTION AND TESTING - PART 1: QUENCHED AND TEMPERED STEEL CYLINDERS WITH TENSILE STRENGTH LESS THAN 1100 MPA
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ISO 4287:1997 Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions and surface texture parameters
ISO 11114-1:2012 Gas cylinders Compatibility of cylinder and valve materials with gas contents Part 1: Metallic materials
ISO 9809-3:2010 Gas cylinders Refillable seamless steel gas cylinders Design, construction and testing Part 3: Normalized steel cylinders
FD E29 753 : 2014 FD GAS CYLINDERS - HYDROGEN COMPATIBILITY TESTING FOR METALS
ISO 9809-4:2014 Gas cylinders Refillable seamless steel gas cylinders Design, construction and testing Part 4: Stainless steel cylinders with an Rm value of less than 1 100 MPa
ISO 7539-6:2011 Corrosion of metals and alloys Stress corrosion testing Part 6: Preparation and use of precracked specimens for tests under constant load or constant displacement
ISO 11120:2015 Gas cylinders Refillable seamless steel tubes of water capacity between 150 l and 3000 l Design, construction and testing
ISO 9809-2:2010 Gas cylinders Refillable seamless steel gas cylinders Design, construction and testing Part 2: Quenched and tempered steel cylinders with tensile strength greater than or equal to 1 100 MPa
ISO 7539-1:2012 Corrosion of metals and alloys — Stress corrosion testing — Part 1: General guidance on testing procedures
ISO 9809-1:2010 Gas cylinders Refillable seamless steel gas cylinders Design, construction and testing Part 1: Quenched and tempered steel cylinders with tensile strength less than 1 100 MPa

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