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    I.S. EN ISO 643:2020

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Steels - Micrographic determination of the apparent grain size (ISO 643:2019)

    Available format(s):  Hardcopy, PDF

    Superseded date:  15-05-2020

    Language(s):  English

    Published date:  03-02-2020

    Publisher:  National Standards Authority of Ireland

    For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
    Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

    Dates of withdrawal of national standards are available from NSAI.

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Symbols
    5 Principle
    6 Selection and preparation of the specimen
    7 Characterization of grain size
    8 Test report
    Annex A (informative) Summary of methods for revealing ferritic, austenitic or prioraustenitic grain boundaries in steels
    Annex B (normative) Evaluation method
    Bibliography

    Abstract - (Show below) - (Hide below)

    This document specifies a micrographic method of determining apparent ferritic or austenitic grain size in steels.

    General Product Information - (Show below) - (Hide below)

    Committee ISO/TC 172
    Document Type Standard
    Product Note The date of any NSAI previous adoption may not match the date of its original CEN/CENELEC document.<br>
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By
    Supersedes
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