ISO 10546:1993

Chemical conversion coatings — Rinsed and non-rinsed chromate conversion coatings on aluminium and aluminium alloys

Specifies requirements relating to the coatings intended to give protection against corrosion and as a base for other coatings. Requirements are concerned with surface preparation, method of application, electrical insulation resistance, adhesion, corrosion resistance, coating mass per unit area, coating mass significance, coating identification, sampling and test specimens, classification. Annex A describes qualitative testing of the layer composition, annex B gives treatment sequence options.