
GB/T 228.4-2019 代替 GB/T 24584—2009
金属材料拉伸试验第4部分:液氨试验方法
Metallic materials—Tensile testing— Part 4:Method of test in liquid helium (ISO 6892-4:2015,MOD)
2019-08-30 发布
2020-07-01 实施
目 次
前言.......................................1
引言.......................................1
1范围......................................1
2规范性引用文件.................................1
3术语和定义...................................1
4符号和说明...................................3
5 原理.....................................3
6试验设备....................................3
7试样......................................6
8试验要求....................................6
9性能测定....................................8
10试验报告...................................8
11测量不确定度.................................9
附录A (资料性附录)液氯拉伸试样类型.....................10