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Norm
ISO 4969:2015
Issue date: 2015 06 19
Steel — Etching method for macroscopic examination
ISO 4969:2015 establishes guidelines for the macroscopic examination of steel by hot etching, room temperature etching and electrolytic etching.
The method has very wide ...
Valid
Publisher:
International Organization for Standardization
Format:
Digital | 9 Pages
Language:
English
ICS
ISO 4969:2015 establishes guidelines for the macroscopic examination of steel by hot etching, room temperature etching and electrolytic etching.
The method has very wide application. Selection of the type, concentration and temperature of the reagent, the etching apparatus and the conditions of surface preparation of the test piece make it possible to achieve the required aim.
NOTE It might be difficult to see fine voids and cracks and discriminate between them and determine their nature by macroetching.
