I.S. EN ISO 643:2020
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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)
Hardcopy , PDF
15-05-2020
English
03-02-2020
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.
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
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