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Sterilizer instructions
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TEL: 0086 18258800889

FAX: 0086 0371 55951125

ADD: Liangzhu Economic Development Zone, Hangzhou.

Sterilizer instructions

ethylene oxide sterilization services

by:EtO sterilizer Manufactorview: 1512 time: 2020-03-13
ethylene oxide sterilization services
Simple but effective
When pure ethylene oxide vapor (100%) is mixed with air whose volume fraction is only 3%, it is flammable and explosive. In order to safely use gas as an industrial disinfectant, the process
It is designed as a cycle stage, and its conveying mode does not allow the process to enter into unsafe state.
This process can be described in a very simple form, as follows:
Using the vacuum chamber, draw in the initial vacuum to exhaust the air and prevent the injection of ethylene oxide
Into an unsafe mixture. After vacuumizing, water is usually added to the vacuum chamber in the form of steam to replace the water lost in the initial vacuum stage.
The next step of this step is to introduce ethylene oxide gas into a predetermined concentration. Select the concentration to ensure proper sterilization. Finally, the product is soaked in ethylene oxide for control
After the scheduled time, a series of cleaning operations are performed to remove the EO chamber. Cleaning involves vacuuming and then pressurizing with inert gas (usually nitrogen). heavy
The re vacuumizing and pressurizing process is scheduled until the indoor air is below the 3% flammability limit of EO.

Gas injection and gas reservoir
After the humidification phase, liquid ethylene oxide is first heated to the gas phase and then injected into the chamber. Gas or gas concentration 3 depends on two main factors, both of which are involved in the cycle design.
The most important factor is to ensure that the minimum gas concentration required for product sterility is achieved. This minimum concentration must be balanced with a second factor, which is the maximum atmospheric volume that can be injected before the high concentration of sterile ethylene oxide residue makes it difficult.
After gas injection, the exposure phase of the process is carried out. At this stage, the product is exposed to heat, relative humidity and gas for a predetermined period of time. According to experience, the more difficult the product is to sterilize, the longer the exposure time. After careful analysis of the product, load configuration and required sterility level, the exposure time is determined by the process design scientists. Preliminary laboratory tests may be required prior to validation.

Principle and advantages of ethylene oxide sterilization
Ethylene oxide sterilization gas is the most commonly used method of low temperature sterilization. Ethylene oxide sterilization is widely used in the field of sterilization of medical devices. Due to the advantages of active ethylene oxide gas, strong bactericidal power, wide bactericidal spectrum and slight damage to articles, the mixed gas of ethylene oxide and carbon dioxide has become one of the most important daily low-temperature sterilization methods.

Our company's ethylene oxide sterilizer is the best choice for mask manufacturers. Ethylene oxide sterilizer is the most professional tool for sterilizing and disinfecting medical masks and disposable civilian masks.
The size of our company's ethylene oxide sterilizer can be customized. Depending on the scale, different sizes of ethylene oxide sterilizers can be provided. Generally speaking, ethylene oxide sterilizers have several different specifications, such as 3 cubic meters, 6 cubic meters, and 10 cubic meters.
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