BS EN ISO 7668. Anodizing of aluminium and its alloys. Measurement of specular reflectance and specular gloss of anodic oxidation coating at angles of 20 degrees, 45 degrees, 60 degrees or 85 degrees
BS EN ISO 7668. Anodizing of aluminium and its alloys. Measurement of specular reflectance and specular gloss of anodic oxidation coating at angles of 20 degrees, 45 degrees, 60 degrees or 85 degrees