The standard specifies a method for the determination of chromaticity coordinates Y of extenders and white pigment powders in pressed form for the reproducible marking of their ligthness using a photometric determined numerical value.
DIN 53163:2018 Referenced Document
DIN 5033-1:2017 Colorimetry - Part 1: Basic terms of colorimetry
DIN 5033-9:2005 Colorimetry - Part 9: Reflectance standard for calibration in colorimetry and photometry
DIN 53236:1983 Testing of colouring materials; conditions of measurement and evaluation for the determination of colour differences for paint coatings, similar coatings and plastics
DIN EN ISO 15528:2013 Paints, varnishes and raw materials for paints and varnishes - Sampling (ISO 15528:2013); German version EN ISO 15528:2013