GB/T 5715-2013 is a test standard for the colour fastness of Spinning & weaving products to acid spots. It specifies specific test methods and specifies the required test equipment, such as precise control of temperature and Humidity device parameters. The operation process of Spinning & weaving products in contact with acid spots is described in detail, including key factors such as acid type, concentration, action time, temperature, etc. By comparing the color changes of Spinning & weaving products before and after acid spots, the colour fastness grade is scientifically assessed with reference to a standard sample card. According to this standard test, the Color Stability of Spinning & weaving products under the influence of acid spots can be accurately judged, which provides an important basis for Spinning & weaving enterprises to control product mass and deal with acid environment application scenarios.