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ISO/DIS 22479

Corrosion of metals and alloys — Sulfur dioxide test in a humid atmosphere (fixed gas method)

General information

Current stage: 40.99 Effective date: Apr 16, 2026

Originator: ISO

Owner: ISO/TC 156

Type: International Standard

ICS: 77.060

Scope

This document specifies a method for assessing the resistance of materials or products to a humid atmosphere containing sulfur dioxide.
This method is applicable to testing metals and alloys, metallic and non-organic coatings and organic coatings.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 22479:2019

NOW

IN_DEVELOPMENT
ISO/DIS 22479
40.99 Full report circulated: DIS approved for registration as FDIS
Apr 16, 2026