General methods of test for pigments and extenders; Part 16: Determination of relative tinting strength (or equivalent colouring value) and colour on reduction of coloured pigments; Visual comparison method

• 颜料和填充剂的一般试验方法。第16部分:相对着色力(或等数着色值)的测定和着色颜料还原后的颜色目视比较法