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Norm
ISO 11114-4:2005
Ausgabedatum: 2005 08 19
Transportable gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 4: Test methods for selecting metallic materials resistant to hydrogen embrittlement
ISO 11114-4:2005 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...
Weiterlesen
ZURÜCKGEZOGEN
: 2017 03 30
Herausgeber:
International Organization for Standardization
Format:
Digital | 16 Seiten
Sprache:
Englisch
Aktuell Gültig:
ICS
ISO 11114-4:2005 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 other embrittling gases.
ISO 11114-4:2005 only applies to seamless steel gas cylinders.
The requirements of ISO 11114-4:2005 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 which cases the partial pressure shall not exceed 0,25 MPa (2,5 bar).
ISO 11114-4:2017
2017 03 30
Transportable gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part...
Norm
ISO 11114-4:2005
2005 08 19
Transportable gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part...
Norm
↖
Norm
ISO 11114-4:2017
Ausgabedatum :
2017 03 30
Transportable gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 4: Test methods for selecting steels resistant to hydrogen embrittlement