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ISO 23721:2022

Corrosion of metals and alloys — Rating method by appearance of rust and stains of atmospheric corrosion for stainless steels

Mar 14, 2022

General information

60.60     Mar 14, 2022

ISO

ISO/TC 156

International Standard

77.060  

English  

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Scope

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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PUBLISHED
ISO 23721:2022
60.60 Standard published
Mar 14, 2022