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SRPS EN ISO 11114-4:2017

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)

Aug 31, 2017

General information

60.60     Aug 31, 2017



European Norm

23.020.30     23.060.40     23.020.35  




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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.

Related directives

Directives related to this standard.


Transport of dangerous goods by rail


Transport of dangerous goods by road


Transport of dangerous goods by road (94/55/EC Dir. amendment)


Transport of dangerous goods by rail (96/49/EC Dir. amendment)


Directive 2008/68/EC of the European Parliament and of the council of 24 September 2008 on the inland transport of the dangerous goods

Life cycle


SRPS EN ISO 11114-4:2011


SRPS EN ISO 11114-4:2017
60.60 Standard published
Aug 31, 2017

Related project

Adopted from EN ISO 11114-4:2017

Adopted from ISO 11114-4:2017