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Norm

ISO 4545-1:2017

Issue date: 2017 12 14

Metallic materials — Knoop hardness test — Part 1: Test method

ISO 4545-1:2017 specifies the Knoop hardness test method for metallic materials for test forces from 0,009 807 N to 19,613 N. The Knoop hardness test is specified in this...
Withdrawn: 2023 10 16
Publisher:
International Organization for Standardization
Format:
Digital | 24 Pages
Language:
English
Currently valid:

ISO 4545-1:2017 specifies the Knoop hardness test method for metallic materials for test forces from 0,009 807 N to 19,613 N.

The Knoop hardness test is specified in this document for lengths of indentation diagonals =0,020 mm. 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. ISO 14577-1 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 ISO 4516.

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ISO 4545-1:2023
2023 10 06
Metallic materials — Knoop hardness test — Part 1: Test method
Norm
ISO 4545-1:2017
2017 12 14
Metallic materials — Knoop hardness test — Part 1: Test method
Norm
ISO 4545-1:2005
2005 11 17
Metallic materials — Knoop hardness test — Part 1: Test method
Norm
ISO 4545:1993
1993 03 18
Metallic materials — Hardness test — Knoop test
Norm
Expand
Norm
ISO 4545-1:2023
Issue date : 2023 10 06
Metallic materials — Knoop hardness test — Part 1: Test method
Norm
ISO 6507-1:2023
Issue date : 2023 10 16
Metallic materials — Vickers hardness test — Part 1: Test method