DS DS/EN ISO 6507-3
DS DSEN SO 6507-3 2006-JAN-19 Metallc materals - Vckers hardness test - Part 3 Calbraton of reference blocks
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This part of ISO 6507 specifies a method for the calibration of reference blocks to be used for the indirect verification of Vickers hardness testing machines, as specified in ISO 6507-2. The method is applicable only for indentations with diagonals greater than or equal to 0,020 mm.