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ISO 4545-3:2017

Metallic materials -- Knoop hardness test -- Part 3: Calibration of reference blocks

General information

Valid from 14.12.2017
Directives or regulations
None

Standard history

Status
Date
Type
Name
14.12.2017
Main
ISO 4545-3:2017 specifies the method for the calibration of reference blocks to be used for the indirect verification of Knoop hardness testing machines as specified in ISO 4545-2.
The method is applicable only for indentations with long diagonals ≥0,020 mm.

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