Reference number
ISO 23721:2022
© ISO 2024
International Standard
ISO 23721:2022
Corrosion of metals and alloys — Rating method by appearance of rust and stains of atmospheric corrosion for stainless steels
Edition 1
2022-03
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Published (Edition 1, 2022)

ISO 23721:2022

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Format
CHF 96
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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.

General information

  • Status
     : Published
    Publication date
     : 2022-03
    Stage
    : International Standard published [60.60]
  • Edition
     : 1
    Number of pages
     : 14
  • Technical Committee :
    ISO/TC 156
    ICS :
    77.060 
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