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ISO DIS 4545-3

M00018915

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ISO DIS 4545-3 2015 Edition, April 23, 2015 METALLIC MATERIALS - KNOOP HARDNESS TEST - PART 3: CALIBRATION OF REFERENCE BLOCKS

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Description / Abstract: This part of ISO 4545 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.