Under normal circumstances, sterilized sterile medical masks will be analyzed in the production enterprise for 7- 14 days. After the analysis is completed, the manufacturer will continue to detect the residual ethylene oxide in the mask until it meets the relevant national standards and passes the factory inspection before putting it on the market.
Ethylene oxide has bactericidal effect, does not corrode metals, has no residual odor, and can kill bacteria (and its endospore), molds and fungi, so it can be used as a gas disinfectant to disinfect some articles and materials that cannot tolerate high-temperature disinfection. Lloyd Hall, an American chemist, obtained a patent for the sterilization and preservation of perfume with ethylene oxide in 1938. This method is still in use today. Ethylene oxide is also widely used to disinfect medical supplies, such as bandages, sutures and surgical instruments.
Use of ethylene oxide:
Most ethylene oxide is used to make other chemicals, mainly ethylene glycol. The main end use of ethylene glycol is to produce polyester polymer, and it is also used as automobile coolant and antifreeze.
Secondly, it is used to produce downstream products such as ethoxy compound, ethanolamine, glycol ether, polyethylene polyamine, diethylene glycol, triethylene glycol, polyethylene glycol, hydroxyethyl cellulose, choline chloride, glyoxal, ethylene carbonate, etc.