BS EN ISO 10215:2018 Anodizing of aluminium and its alloys. Visual determination of image clarity of anodic oxidation coatings. Chart scale method

Anodic coating
Anodizing
Electrodeposition
Optical measurement
Visual inspection (testing)
Flat (shape)
Aluminium alloys
Protective coatings
Electrochemical coating
Image distortion
Optical properties of materials
Aluminium
Coatings

Link: BS EN ISO 10215:2018 Anodizing of aluminium and its alloys. Visual determination of image clarity of anodic oxidation coatings. Chart scale method
Source: BSI Standards