This document specifies the requirements, test methods, inspection rules, marking, and packaging of 2-[2-(4-chlorophenyl)ethyl]-2-(1,1-dimethylethyl)-ethylene oxide , transportation, storage and safety. This document applies to 2-[2-(4-chlorophenyl)ethyl]-2-( produced from 1-(4-chlorophenyl)-4,4-dimethyl-3-pentanone as raw material Product quality control standards for 1,1-dimethylethyl)-ethylene oxide. This product is used in the field of pesticides as an intermediate and is the main raw material for the production of the pesticide tebuconazole.