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ISO 7668:2010
Anodizing of aluminium and its alloys - Measurement of specular reflectance and specular gloss of anodic oxidation coatings at angles of 20 degrees, 45 degrees, 60 degrees or 85 degrees
ISO 7668:2010 specifies methods for the measurement of specular reflectance and specular gloss of flat samples of anodized aluminium using geometries of 20 (Method A), 45 (Method B), 60 (Method C) and 85 (Method D); and of specular reflectance by an additional 45 method (Method E) employing a narrow acceptance angle.
The methods described are intended mainly for use with clear anodized surfaces. They can be used with colour-anodized aluminium, but only with similar colours.
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International Organization for Standardization [iso]
International Organization for Standardization [iso]