DIN EN ISO 11114-4-2005 移动气瓶.气瓶和瓶阀材料与盛装气体的相容性.第4部分:选择耐氢脆的金属材料的试验方法

标准号：DIN EN ISO 11114-4-2005
中文标准名称：移动气瓶.气瓶和瓶阀材料与盛装气体的相容性.第4部分:选择耐氢脆的金属材料的试验方法
英文标准名称：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
标准类型：J74
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：J74
国际标准分类号：23.020.30;23.060.40
引用标准：ISO 4287;ISO 7539-1-1987;ISO 7539-6-2003;ISO 9809-1;ISO 9809-2;ISO 9809-3;ISO 11114-1-1997;ISO 11120
适用范围：This part of ISO 11114 specifies test methods and the evaluation of results from these tests in order to qualifysteels suitable for use in the manufacture of gas cylinders (up to 3 000 I) for hydrogen and other embrittlinggases.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 theintended 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).