November 2024

The temperature setting range of the ETO Sterilization Chamber should be between 30-60°C. It is recommended to perform temperature distribution testing of the sterilizer’s internal surface and temperature and humidity distribution testing inside the sterilization chamber to ensure the effectiveness of the heating and humidifying systems.

The purpose of routine monitoring and control of EO (Ethylene Oxide) sterilization is to demonstrate that the confirmed and specified sterilization process has been applied to the product. Data from each sterilization cycle should be recorded and retained to prove that the confirmed sterilization process specifications have been met. This should include at least the following content:

A Process Challenge Device (PCD) is a microbiological challenge system used to evaluate the kill rate of selected process parameters. It is typically a device or test package containing biological indicators (e.g., Bacillus atrophaeus spores with known spore count). The resistance of the PCD to the sterilization process should be greater than or equal to the resistance of the natural microbial load in the most difficult-to-sterilize area of the product. The quantity of PCDs should meet the requirements outlined in Table C.3 of Appendix C in GB18279.1-2015. PCDs are classified into Internal PCDs (IPCD) and External PCDs (EPCD).

Industry Eto Sterilizer Installation Verification The installation of Industry Eto Sterilizer and all associated services should comply with the requirements

The humidification water used in the ETO Sterilization Equipment should be free from contaminants, should not weaken the ETO sterilization process, and should not damage the sterilizer, sterilized products, or the load. Humidification should be done by injecting steam, not by directly injecting atomized water.