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| International Standard Category: Mechanical testing of metals |
GB/T 230.1-2009 Metallic materials - Rockwell hardness test - Part 1: Test method(scales A, B, C, D, E, F, G, H, K, N, T)
金属材料 洛氏硬度试验 第1部分：试验方法（A、B、C、D、E、F、G、H、K、N、T标尺）;
| Category No.: | 77.040.10 | Valid Status: | superseded |
| Issued Organization: | AQSIQ; SAC | Issued Date: | 2009-6-25 |
| Implemented Date: | 2010-4-1 | Abolished Date: | |
| Superseded Standard.: | GB/T 230.1-2018 Metallic materials—Rockwell hardness test—Part 1:Test method |
Superseded Date: | 2018-12-1 |
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