BS 891-2:1964被替代
Method for Rockwell hardness test. Verification of the testing machine
出版：British Standards Institution
专家解读视频
基本信息
标准编号： BS 891-2:1964
发布时间：1964/11/26 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：0
标准简介
Direct and indirect verification, routine checks, calibration of standard hardness blocks used for indirect verification.
标准备注
© British Standards Institution 2013
Replaces notes:
Replaces BS 891:1940.
等同采用的国际标准
ISO 716:1986 - Similar
