GB/T 7921-1997 《Uniform colour space and colour difference formula》 Related products

GB/T 7921-1997 regulates uniform color space and Color difference formula. This standard defines the concept of uniform color space, gives formulas for calculating color difference, and clarifies the meaning and value range of each parameter. With these, it can scientifically quantify Color differences, so that different Colors can be accurately compared under a unified system. It is widely used in Spinning & weaving, printing, coatings and other industries that need to precisely control color, providing important technical support for color quality control, product color scheme, etc., and helping to improve the quality and conformity of color-related products.