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BS EN ISO 4545-1:2018

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Metallic materials. Knoop hardness test Test method

Available format(s)

Hardcopy , PDF

Superseded date

17-10-2023

Superseded by

BS EN ISO 4545-1:2023

Language(s)

English

Published date

19-03-2018

€285.14
Excluding VAT

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Superseded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

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