NF A91-494*NF EN ISO 10215:2018 Anodizing of aluminium and its alloys - Visual determination of image clarity of anodic oxidation coatings - Chart scale method
2018NF A91-494*NF EN ISO 10215:2018 Anodizing of aluminium and its alloys - Visual determination of image clarity of anodic oxidation coatings - Chart scale method