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  • ISO 4545-1:2017

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Metallic materials — Knoop hardness test — Part 1: Test method

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  16-10-2023

    Language(s):  French, English

    Published date:  14-12-2017

    Publisher:  International Organization for Standardization

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    Abstract - (Show below) - (Hide below)

    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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    Committee ISO/TC 164/SC 3
    Development Note Supersedes ISO 4545. (11/2005) Supersedes ISO/DIS 4545-1. (12/2017)
    Document Type Standard
    Publisher International Organization for Standardization
    Status Superseded
    Superseded By
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 4516:2002 Metallic and other inorganic coatings — Vickers and Knoop microhardness tests
    ISO 23718:2007 Metallic materials — Mechanical testing — Vocabulary
    ISO/IEC Guide 99:2007 International vocabulary of metrology Basic and general concepts and associated terms (VIM)
    ISO 4545-4:2005 Metallic materials Knoop hardness test Part 4: Table of hardness values
    ECA 10-16 : 2011 GUIDELINES ON THE ESTIMATION OF UNCERTAINTY IN HARDNESS MEASUREMENTS
    ISO 14577-1:2015 Metallic materials Instrumented indentation test for hardness and materials parameters Part 1: Test method
    ISO 18265:2013 Metallic materials — Conversion of hardness values
    ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
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