GB/T 3181-2008 "Color Standard for Paints coatings" specifies the Color standard for Paints coatings and its application method. The standard is applicable to the production and use of Paints and related products, and provides guidance for the formulation and selection of Color. When using, it should be combined with the GSB 05-1426 Color standard sample card for paint films to ensure the accuracy and conformity of Color. GB/T 3181-2008 not only provides specific requirements for the determination of Color, but also includes tolerance for color difference and Measuring method to ensure the Stability and comparability of coating colors under different conditions.