The ISO 17228:2015 standard specifies an accelerated aging colour fastness test method for leather products to evaluate the Color stability of leather under simulated long-term use conditions. The test involves placing the sample in a controlled environment such as high temperature, high humidity and ultraviolet light to simulate the aging effect in actual use. The test results evaluate the Color change of the sample by Colorimeter or the naked eye, providing a scientific basis for the production and selection of leather products, ensuring its color durability in actual use.