Transportable gas cylinders. Compatibility of cylinder and valve materials with gas contents-Test methods for selecting steels resistant to hydrogen embrittlement
可运输的气瓶 气瓶和阀门材料与气体含量的兼容性
发布日期:
2017-06-20
BS EN ISO 11114-4:2017规定了试验方法和这些试验结果的评估,以鉴定适用于制造氢气和氢气气瓶(高达3000升)的钢材
带有脆化气体的。本文件仅适用于无缝钢气瓶。本文件的要求不适用于以下情况之一:
达到预期气体用途:填充的脆化气体的工作压力小于试验压力的20%
圆柱气体混合物中填充的脆化气体的分压小于5 MPa(50 bar)
氢和其他脆化气体的情况,硫化氢和甲基除外
硫醇;在这种情况下,分压不得超过0.25 MPa(2.5 bar)。交叉引用:ISO 9809-2:2010 Ed 2ISO 11114-1:2012ISO 7539-1:2012 Ed 2ISO 11120:2015 Ed 2ISO 7539-6:2011 Ed 3ISO 9809-1:2010 Ed 2 AFNOR FD E29-753ISO 9809-4:2014 Ed 1ISO 9809-3:2010 Ed 2ISO 4287:1997购买本文件时提供的所有当前修订版均包括在内。
BS EN 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).Cross References:ISO 9809-2:2010 Ed 2ISO 11114-1:2012ISO 7539-1:2012 ED2ISO 11120:2015 ED2ISO 7539-6:2011 Ed 3ISO 9809-1:2010 Ed 2 AFNOR FD E29-753ISO 9809-4:2014 ED1ISO 9809-3:2010 Ed 2ISO 4287:1997All current amendments available at time of purchase are included with the purchase of this document.