Anodizing of aluminium and its alloys. Method to test the surface abrasion resistance using glass-coated abrasive paper Ingestion-build-224916 A hearing aid with electrical

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Anodizing of aluminium and its alloys. Method to test the surface abrasion resistance using glass-coated abrasive paper Ingestion-build-224916 A hearing aid with electrical1 Scope This document specifies a method for the determination of the surface abrasion resistance of anodic oxidation coatings produced by sulfuric acid anodizing of aluminium and its alloys. It is mainly intended for the evaluation of external architectural coatings. It is a production control method that relies to a large extent on operator experience and instruction.