DIN EN ISO 7668 : 2021 Title: Anodizing of aluminium and its alloys - Measurement of specular reflectance and specular gloss of anodic oxidation coatings at angles of 20°, 45°, 60° or 85° (ISO 7668:2021) Year: 2021 Publisher: DIN Media GmbH Availability: Within 1-2 working days