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.
Status: PublishedPublication date: 2022-11
Edition: 1Number of pages: 8
Technical Committee: ISO/TC 156 Corrosion of metals and alloys
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