NF A91-421:1988 SURFACE TREATMENTS. ANODIZED ALUMINIUM AND ALUMINIUM ALLOYS. MEASUREMENT OF REFLECTANCE CHARACTERISTICS OF ALUMINIUM SURFACES USING INTEGRATING SPHERE INSTRUMENTS.
1988NF A91-421:1988 SURFACE TREATMENTS. ANODIZED ALUMINIUM AND ALUMINIUM ALLOYS. MEASUREMENT OF REFLECTANCE CHARACTERISTICS OF ALUMINIUM SURFACES USING INTEGRATING SPHERE INSTRUMENTS.