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prEN ISO 4969

Steel - Etching method for macroscopic examination (ISO 4969:2015) prEN ISO 4969

General information

40.10   harmonizedStageCodeLabel.40.10   Aug 20, 2026

CEN

CEN/TC 459/SC 1 Test methods for steel (other than chemical analysis)

European Norm

77.040.99   Other methods of testing of metals

Scope

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.

Life cycle

NOW

IN_DEVELOPMENT
prEN ISO 4969
40.10 harmonizedStageCodeLabel.40.10
Aug 20, 2026

Relations

Adopted from ISO 4969:2015 IDENTICAL




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