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ISO 3738-2: 1988 《硬質(zhì)合金洛氏硬度試驗(yàn)（A標(biāo)尺）第2部分：標(biāo)準(zhǔn)硬度塊的準(zhǔn)備與標(biāo)定》國際標(biāo)準(zhǔn)（英文版）

International Standard ISO 3738-2:1988 ISO 3738-2-1988(英文).png

Hardmetals - Rockwell hardness test (scale A) -

Part 2 :

Preparation and calibration of standard test blocks

1 Scope and field of application

This part of IS0 3738 specifies the preparation and calibration of hardmetal primary standard test blocks, secondary standard test blocks and working standard test blocks from master standard test blocks to be used for the verification of Rockwell hardness testing machines (scale A) and indenters for testing hardmetals.

This document should be read in conjunction with IS0 3738-l.

2 Reference

IS0 3738-1, Hardmetals - Rockwellhardness test (scale A) - Part 1 : Test method.

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