GB/T 5211.20-1999 "Comparison of the colours, in full-shade systems, of white, black and coloured pigments - Colorimetric method" specifies a general method for comparing the colours of white, black and coloured pigments with reference pigments in full-shade systems using a colorimetric method. The method involves measuring the tristimulus values of sample plates using an integrating sphere spectrophotometer or tristimulus colorimeter, and calculating colorimetric values and color differences. The testing instruments include an integrating sphere spectrophotometer/tristimulus colorimeter, a flat grinder, and film preparation equipment, providing an accurate method for quality control of pigment colours.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G53 | ICS | 87.060.10 |
| Release Date | 1999-09-16 00:00:00 | Implementation Date | 2000-06-01 00:00:00 |
