Abstract: In order to provide readers with a deeper understanding of “technical requirement and test method for low temperature washing performance of washing machines”, to introduce the definition of washing machines low temperature washing and the scope of application of this standard, expounds the technical requirements of washing performance, rinsing performance, abrasion performance and color protection performance and test methods of color protection performance, and emphatically analyzes the reasons and purposes of setting each index of low temperature washing. In addition, the background of RZB 044—2019 “technical specification for characteristic product certification technical requirements for washing machine cold water washing performance certification” is introduced, and the performance indicators of the two are compared. Compared with the ordinary washing machine washing performance standards, the technical indicators of evenness of washing, rate of rinse and rate of abrasion in this standard are more stringent, and the performance indicators of color rate are increased. Finally, the advantages of low temperature washing are demonstrated through experimental data from some sample machines, providing guidance for the future development direction of the washing machine industry.

Key words: Low temperature wash, Cold wash, Color protection performance, The clothes faded