GB/T 20503-2006
Anodizing of aluminium and its alloys. Measurement of specular reflectance and specular gloss at angles of 20°,45°,60°or 85° (English Version)
- Standard No.
- GB/T 20503-2006
- Language
- Chinese, Available in English version
- Release Date
- 2006
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 20503-2006
- Scope
- This standard specifies the measurement of specular reflection of aluminum and aluminum alloy anodized film plane samples when the geometric angles are 20° (method A), 45° (method B), 60° (method C) and 85° (method D). method for reflectivity and specular gloss, and a method for measuring specular reflectance with a narrow acceptance angle of 45° (Method E). This standard is mainly applicable to the surface of transparent anodized film, and can also be used for colored anodized film, but it is only applicable to the comparison between similar colors.
GB/T 20503-2006 history
- 2006 GB/T 20503-2006 Anodizing of aluminium and its alloys. Measurement of specular reflectance and specular gloss at angles of 20°,45°,60°or 85°
