Chinese Standard: GB/T 4340.3-2012

Metallic materials—Vickers hardness test—Part 3:Calibration of reference blocks

MOD  ISO 6507-3:2005

全国试验机标准化技术委员会(SAC/TC 122)

GB/T 4340的本部分规定了按GB/T 4340.2—2012对维氏硬度计间接检验所用标准硬度块（以下简称标准块）的标定方法。
本部分仅适用于对角线长度不小于0.020 mm的压痕。

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