This International Standard specifies a visual method for determining the image clarity of anodic oxidationcoatings on aluminium and aluminium alloys using a chart scale and a lightness scale, which are defined. The method can be applied only to flat surfaces that can reflect the image of the chart scale pattern.
DS/EN ISO 10215:2011 history
2011DS/EN ISO 10215:2011 Anodizing of aluminium and its alloys - Visual determination of image clarity of anodic oxidation coatings - Chart scale method