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ISO 6508-2:2023

Metallic materials — Rockwell hardness test — Part 2: Verification and calibration of testing machines and indenters

General information
Valid from 13.12.2023
Directives or regulations
None

Standard history

Status
Date
Type
Name
13.12.2023
Main
25.02.2015
Main
This document specifies two separate methods of verification of testing machines (direct and indirect) for determining Rockwell hardness in accordance with ISO 6508-1, together with a method for verifying Rockwell hardness indenters.
The direct verification method is used to determine whether the main parameters associated with the machine function, such as applied force, depth measurement, and testing cycle timing, fall within specified tolerances. The indirect verification method uses a number of calibrated reference hardness blocks to determine how well the machine can measure a material of known hardness.
This document is applicable to stationary and portable hardness testing machines.
Attention is drawn to the fact that the use of tungsten carbide composite for ball indenters is considered to be the standard type of Rockwell indenter ball.
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