Historical
ISO 4545-2:2005
Metallic materials - Knoop hardness test - Part 2: Verification and calibration of testing machines
ISO 4545-2:2005 specifies the method of verification of testing machines for determining Knoop hardness for metallic materials in accordance with ISO 4545-1. It covers test forces from 0,098 07 N to 19,614 N. The method is recommended only for indentations with diagonals greater than or equal to 0,020 mm.
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International Organization for Standardization [iso]
International Organization for Standardization [iso]
