Abstract

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This document specifies a method for checking the continuity of thin anodic oxidation coatings on aluminium and its alloys by a copper sulfate contact test.

The use of this method is limited to anodic oxidation coatings of thickness less than 5 µm or coatings that have been deformed, which includes those produced by coil anodizing techniques.

NOTE The method described enables a rapid check to be made for the continuity of a thin coating of aluminium oxidation on aluminium and its alloys. In cases of doubt regarding a visible fault on the surface of a coating, the use of this method makes it possible to verify whether the fault corresponds to a local gap in the coating that exposes bare metal.


General information 

  • Status
     : Published
    Publication date
     : 2018-08
  • Edition
     : 3
    Number of pages
     : 3
  • Technical Committee
     : ISO/TC 79/SC 2 Organic and anodic oxidation coatings on aluminium
  • ICS
     :
    25.220.20 Surface treatment

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