NP EN 12373-13-2001 Aluminium and aluminium alloys Anodizing Part 13:Measurement of reflectance characteristics of aluminium surfaces using a goniophotometer or an abriged goniophotometer
2002NP EN 12373-13-2001 Aluminium and aluminium alloys Anodizing Part 13:Measurement of reflectance characteristics of aluminium surfaces using a goniophotometer or an abriged goniophotometer