This standard specifies the requirements for the use of a washable colour fastness tester, including main parameters, test methods, inspection rules and signs, Encasement, transportation and storage. The standard applies to the washable performance test of all types of Spinning & weaving products, using a test instrument with a nominal capacity of 550mL of washable test cups. Parameters such as the inner diameter and depth of the washable test cup and the swirl/spin radius from the bottom of the test cup to the center of the swirl/spin test cup holder are specified. In addition, the standard also specifies that the temperature display scale interval is 0.1 ° C.