China 'GB/T 21838.3-2022
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 21838.3-2022
Metallic materials - Instrumented indentation tests for hardness and material parameters - Part 3: Calibration of standard blocks 金属材料 硬度和材料参数的仪器化压入试验 第3部分:标准块的标定
Issued Date:2022/7/11
Implemented Date:2023/2/1
Issued by:
The Standardization Administration of the People's Republic of China