ISO 2135:1984

Anodizing of aluminium and its alloys — Accelerated test of light fastness of coloured anodic oxide coatings using artificial light

For evaluating light fastness on exterior exposure, only outdoor exposure under conditions comparable to actual service is completely satisfactory. The testing is suitable as a quality control test of coloured anodic oxide coatings whose light fastness number has already been established by means of outdoor exposure testing.