This document specifies the classification and naming, requirements, test methods, inspection rules, marking and accompanying documents, packaging, transportation and storage of recycled propylene glycol methyl ether and propylene glycol methyl ether acetate mixed organic solvents. This document is applicable to the mixing of regenerated propylene glycol methyl ether and propylene glycol methyl ether acetate obtained by using industrial waste esters, alcohols and other organic solvents generated in the electronic device manufacturing industry as raw materials, and after comprehensive treatment such as distillation, rectification, and precision filtration processes. Organic solvents are mainly used in display manufacturing, semiconductor discrete devices, printing and other industries. They are not suitable for the food industry.