General methods of test for pigments and extenders — Part 25: Comparison of the colour, in full-shade systems, of white, black and coloured pigments — Colorimetric method
颜料和扩展剂的一般测试方法 - 第25部分:白色 黑色和彩色颜料的全色系统中颜色的比较 - 比色法
This document specifies a general test method for comparing the colour, in full-shade systems, of white, black or coloured pigments with that of an agreed reference pigment, using a colorimetric procedure.