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.
Revises
ISO 2135:1976
WITHDRAWN
ISO 2135:1984
95.99
Withdrawal of Standard
2 shk 2010
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