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ISO 4969:1980

Steel -- Macroscopic examination by etching with strong mineral acids

General information

Withdrawn from 19.06.2015
Directives or regulations
None

Standard history

Status
Date
Type
Name
19.06.2015
Main
This macroscopic method has very wide application. Selection of the type and concentration of the reagent, the temperature of the reaction and the conditions of surface preparation of the test piece make it possible to achieve the required aim. Specifies general, principle, reagents, test piece, procedure, preservation of test pieces and test report.

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Standard monitoring