ISO 4545-3:2005 View larger

ISO 4545-3:2005

M00007841

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ISO 4545-3:2005 Metallic materials - Knoop hardness test - Part 3: Calibration of reference blocks

standard by International Organization for Standardization, 11/15/2005

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ISO 4545-3:2005 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 greater than or equal to 0,020 mm.