Active standard | Published: 14/03/2022

ISO 23721:2022

Corrosion of metals and alloys — Rating method by appearance of rust and stains of atmospheric corrosion for stainless steels
(Corrosion des métaux et alliages — Méthode de cotation par l´apparence de la rouille et des taches de corrosion atmosphérique pour les aciers inoxydables)

Available languages: English

Available design: electronic design (pdf), Print design

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Detail information

Designation: ISO 23721:2022

Publication date: 14/03/2022

Pages: 14

Country: International technical standard

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Anotation

Description / Abstract: 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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