ISO-23721 › Corrosion of metals and alloys - Rating method by appearance of rust and stains of atmospheric corrosion for stainless steels

ISO-23721 - 1ST EDITION - CURRENT


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This document specifies a method for evaluating the aesthetic appearance of stainless steels qualitatively by rating rust and stains formed by atmospheric corrosion. The rust and stains on stainless steels formed by atmospheric corrosion are rated by using 10 photographic standards.

This method is especially suitable for evaluating the appearance of specimens and structures made of stainless steels under atmosphere exposure.

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77.060 (Corrosion of metals Surface treatment and coating, see 25.220)

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Document Number

ISO 23721:2022

Revision Level

1ST EDITION

Status

Current

Publication Date

March 1, 2022

Committee Number

ISO/TC 156