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BS EN ISO 4545-2:2017
Metallic materials. Knoop hardness test Verification and calibration of testing machines
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| Označení normy: | BS EN ISO 4545-2:2017 |
| Počet stran: | 26 |
| Vydáno: | 2018-03-27 |
| ISBN: | 978 0 580 84281 8 |
| Status: | Standard |
DESCRIPTION
BS EN ISO 4545-2:2017
This standard BS EN ISO 4545-2:2017 Metallic materials. Knoop hardness test is classified in these ICS categories:
- 77.040.10 Mechanical testing of metals
This document 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.