This International Standard specifies an accelerated test method for assessing the fastness, using artificial
light, of coloured anodic oxidation coatings on aluminium and its alloys.
For evaluating light fastness on exterior exposure, only outdoor exposure under conditions comparable to
actual service is completely satisfactory.
Accelerated testing is suitable as a quality-control test of coloured anodic oxidation coatings whose lightfastness
number has already been established by means of outdoor exposure testing.
The method is applicable to coloured anodic oxidation coatings on aluminium and its alloys produced by any
means and for any purpose.
However, the method is not suitable for the measurement of coloured coatings with a light-fastness number already established by means of outdoor exposure testing, and of less than 6.
ISO 2135:2010 Referenced Document
ISO 105-A02:1993 Textiles; tests for colour fastness; part A02: grey scale for assessing change in colour
ISO 2135:2010 history
2017ISO 2135:2017 Anodizing of aluminium and its alloys - Accelerated test of light fastness of coloured anodic oxidation coatings using artificial light
2010ISO 2135:2010 Anodizing of aluminium and its alloys - Accelerated test of light fastness of coloured anodic oxidation coatings using artificial light
1984ISO 2135:1984 Anodizing of aluminium and its alloys; Accelerated test of light fastness of coloured anodic oxide coatings using artificial light
1976ISO 2135:1976 Anodizing of aluminium and its alloys — Accelerated test of lightfastness of coloured anodic oxide coatings