ISO/TC 58
| Project No. | ISO 11114-4:2017 |
|---|---|
| Title | <p>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.</p> <p>This document only applies to seamless steel gas cylinders.</p> <p>The requirements of this document are not applicable if at least one of the following conditions for the intended gas service is fulfilled:</p> <p>- the working pressure of the filled embrittling gas is less than 20 % of the test pressure of the cylinder;</p> <p>- 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).</p> <p>NOTE In such cases, it is possible to design the cylinder as for ordinary (non-embrittling) gases.</p> |
| Registration number (WIID) | 64587 |
| Scope | <p>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.</p> <p>This document only applies to seamless steel gas cylinders.</p> <p>The requirements of this document are not applicable if at least one of the following conditions for the intended gas service is fulfilled:</p> <p>- the working pressure of the filled embrittling gas is less than 20 % of the test pressure of the cylinder;</p> <p>- 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).</p> <p>NOTE In such cases, it is possible to design the cylinder as for ordinary (non-embrittling) gases.</p> |
| Status | Standarts spēkā |
| ICS group | 23.020.30 23.020.35 |