ISO INTERNATIONAL STANDARD 23052 First edition 2020-09 Anodizing of aluminium and its alloys Test method for chemical resistance of anodic oxidation coatings on aluminium and its alloys using electromotive force apparatus Anodisation de I'aluminium et de ses alliages-Methode d'essai pour la resistance chimique des couches d'oxydation anodique sur I'aluminium et ses alliages a I'aide d'un appareil a force electromotrice Reference number IS023052:2020(E) ISO @IS02020 IS023052:2020(E) COPYRIGHTPROTECTEDDOCUMENT ISO2020 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may below or ISo's member body in the country of the requester. ISO copyright office CP 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland ii IS02020-Allrights reserved IS023052:2020(E) Contents Page Foreword iv Introduction V 1 Scope. .1 2 Normativereferences .1 3 Terms and definitions .1 4 Principle. .1 5 Reagents. 6 Apparatus. .2 7 Test specimen .3 7.1 Sampling 3 7.2 Size 3 7.3 Treatment before testing 3 8 Procedure. .4 8.1 Test solution 4 8.2 Test temperature 4 8.3 Measurement .4 9 Expression of results. .4 10 Test report 5 AnnexA (informative)Otherconditionsforthe chemicalresistancetest 6 AnnexB (informative)Validationoftheheating-uptime. .7 AnnexC (informative)Testsolutionanddissolutiontime .9 @ IS0 2020 - All rights reserved iii