GB/T 8439-1998 establishes a standard for the detection of color fastness of Spinning & weaving products to aluminum chloride carbonization. It specifies the test process in detail, including the preparation of aluminum chloride solution, the specific operation of Spinning & weaving products carbonization treatment, such as temperature and time control, and strict result evaluation criteria. According to this standard test, the Color stability of Spinning & weaving products under aluminum chloride carbonization process can be accurately evaluated, which provides a key basis for Spinning & weaving enterprises to optimize the carbonization production process and ensure product mass, and helps to improve the quality competitiveness of related Spinning & weaving products in the market.