DS DS/EN ISO 3738-2
DS DSEN SO 3738-2 2006-APR-20 Hardmetals - Rockwell hardness test scale A - Part 2 Preparaton and calbraton of standard test blocks
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This part of EN ISO 3738 specifies the preparation and calibration of hardmetal primary standard test blocks, scondary standard test blocks and working standard test blocks from master standard test blocks to be used for the verifcation of Rockwell hardness testing machines (scale A) and indenters for testing hardmetals.