DIN EN ISO 11114-4:2005 PDF

Scope: This part of ISO 11114 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 I) for hydrogen and other embrittling gases. This part of ISO 11114 only applies to seamless steel gas cylinders. The requirements of this part of ISO 11114 are not applicable if at least one of the following conditions for the intended gas service is fulfilled 1): -- 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).

DIN EN ISO 11114-4:2005 Referenced Document

ISO 11114-1:1997 Transportable gas cylinders - Compatibility of cylinder and valve materials with gas contents - Part 1: Metallic materials
ISO 11120 Gas cylinders - Refillable seamless steel tubes of water capacity between 150 l and 3000 l - Design, construction and testing*， 2015-02-01 Update
ISO 4287 Geometrical product specifications (GPS) — Surface finish: Profile method — Surface finish terms, definitions and parameters — Amendment 2: .
ISO 7539-1:1987 Corrosion of metals and alloys - Stress corrosion testing - Part 1: General guidance on testing procedures
ISO 7539-6:2003 Corrosion of metals and alloys - Stress corrosion testing - Part 6: Preparation and use of pre-cracked specimens for tests under constant load or constant displacement
ISO 9809-1 Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 1: Quenched and tempered steel cylinders and tubes with tensile strength less than 1 100 MP*， 2019-08-22 Update
ISO 9809-2 Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 2: Quenched and tempered steel cylinders and tubes with tensile strength greater than or eq*， 2019-08-22 Update
ISO 9809-3 Gas cylinders — Design, construction and testing of refillable seamless steel gas cylinders and tubes — Part 3: Normalized steel cylinders and tubes*， 2019-08-22 Update

2017 DIN EN ISO 11114-4:2017-09 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); German version EN ISO 11114-4:2017
2017 DIN 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)
2005 DIN EN ISO 11114-4:2005 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); English version of DIN EN ISO 11114-4
1970 DIN EN ISO 11114-4 E:2003-05 Transportable gas cylinders Compatibility of cylinder and valve materials with gas content Part 4: Test method for selecting steels resistant to hydrogen embrittlement (draft)