ISO-4545-2 › Metallic materials - Knoop hardness test - Part 2: Verification and calibration of testing machines

ISO-4545-2 - 2ND EDITION - CURRENT
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ISO 4545-2:2017 specifies the method of verification and calibration of testing machines for determining Knoop hardness for metallic materials in accordance with ISO 4545‑1.

A direct method of verification and calibration is specified for the testing machine, indenter, and the diagonal length measuring system. An indirect verification method using reference blocks is specified for the overall checking of the machine.

If a testing machine is also to be used for other methods of hardness testing, it will be verified independently for each method.

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77.040.10 (Mechanical testing of metals Mechanical testing in general, see 19.060 Mechanical testing of welded joints, see 25.160.40)

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Document Number

ISO 4545-2:2017

Revision Level

2ND EDITION

Status

Current

Publication Date

Dec. 1, 2017

Committee Number

ISO/TC 164/SC 3