BS EN ISO 4545-1:2018
Superseded
View Superseded by
Metallic materials. Knoop hardness test Test method
Hardcopy , PDF
English
03-19-2018
10-17-2023
| Committee |
ISE/101/5
|
| DocumentType |
Standard
|
| Pages |
34
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
This document specifies the Knoop hardness test method for metallic materials for test forces from 0,009 807N to 19,613N.
The Knoop hardness test is specified in this document for lengths of indentation diagonals ≥0,020mm. Using this method to determine Knoop hardness from smaller indentations is outside the scope of this document as results would suffer from large uncertainties due to the limitations of optical measurement and imperfections in tip geometry. ISO14577-1 allows the determination of hardness from smaller indentations.
A periodic verification method is specified for routine checking of the testing machine in service by the user.
Special considerations for Knoop testing of metallic coatings can be found in ISO4516.
| Standards | Relationship |
| ISO 4545-1:2017 | Identical |
| EN ISO 4545-1:2018 | Identical |
| I.S. EN ISO 4545-1:2018 | Equivalent |
| DIN EN ISO 4545-1:2018-07 | Equivalent |
| UNE-EN ISO 4545-1:2018 | Equivalent |
| EN ISO 4545-1:2018 | Equivalent |
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