JIS K5101-3-2-2004 "Pigment Test Methods, Part 3: tinting strength. Section 2 Determination of relative tinting strength of white pigment, visual comparison method", specifies the technical method for determining the relative tinting strength of white pigment by visual comparison method. The standard specifies the preparation process of the sample. After mixing the white pigment with the standard sample, the operation procedure of visually comparing the color depth to determine the relative tinting strength provides a unified detection standard and judgment basis for intuitive and accurate evaluation of white pigment chromadizing performance.