BS 6533:1984

Foreword
Committees responsible
Guide
1 Scope
2 Principle
3 Etching reagents
4 Sample
5 Preparation of sample
6 Etching procedure
7 Guidance for preservation of samples
8 Report
Table
1 Approximate times of application for etching reagents

Gives guidance on and describes methods for the macroscopic examination of steel by etching with acids. The methods given make it possible to achieve an informed description of the etched surface.

This British Standard gives guidance on and describes methods for the macroscopic examination of steel by etching with strong mineral acids.

NOTE The use of the methods, and the conditions for interpreting the results observed, depend on the particular case and details may be laid down in product standards or be subject to special agreement.

The methods given have very wide application. Selection of the type and concentration of the reagent, the temperature of the reagent and the conditions of surface preparation of the test piece make it possible to achieve an informed description of the etched surface.

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.