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ISO 3079:2022

Two-electrode method using acetic acid to measure pitting potential of aluminium and aluminium alloys in chloride solutions

Publication date:   Nov 14, 2022

General information

60.60 Standard published   Nov 14, 2022

ISO

ISO/TC 156 Corrosion of metals and alloys

International Standard

77.060   Corrosion of metals

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Scope

This document specifies a test method for the measurement of the pitting potential of aluminium and aluminium alloys in sodium chloride solution of a mass fraction of 5 %, with a fixed concentration of acetic acid as the oxidant, using a two-electrode system. This document provides a simple method for ranking aluminium alloys and is especially useful for evaluating galvanic protection performance of thin clad materials because the test method causes little specimen damage.

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PUBLISHED
ISO 3079:2022
60.60 Standard published
Nov 14, 2022