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BSI BS EN ISO 4545-1:2023

Metallic materials. Knoop hardness test -- Test method
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BSI BS EN ISO 4545-1:2023

Metallic materials. Knoop hardness test -- Test method

PUBLISH DATE 2023
PAGES 36
BSI BS EN ISO 4545-1:2023
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.
SDO BSI: British Standards Institution
Document Number ISO 4545-1
Publication Date Oct. 17, 2023
Language en - English
Page Count 36
Revision Level
Supercedes
Committee ISE/101/5
Publish Date Document Id Type View
Oct. 17, 2023 BS EN ISO 4545-1:2023 Revision
March 19, 2018 BS EN ISO 4545-1:2018 Revision
Jan. 30, 2006 BS EN ISO 4545-1:2005 Revision