ISO 3738-2: 1988 《硬質(zhì)合金 洛氏硬度試驗（A標尺） 第2部分：標準硬度塊的準備與標定》國際標準（英文版）

International Standard ISO 3738-2:1988ISO 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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