DS/ISO 7668:2021 Anodizing of aluminium and its alloys – Measurement of specular reflectance and specular gloss of anodic oxidation coatings at angles of 20°, 45°, 60° or 85°
2021DS/ISO 7668:2021 Anodizing of aluminium and its alloys – Measurement of specular reflectance and specular gloss of anodic oxidation coatings at angles of 20°, 45°, 60° or 85°
1988DS/ISO 7668:1988 Anodized aluminium and aluminium alloys. Measurement of specular reflectance and specular gloss at angles of 20, 45, 60, or 85 degrees