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<p>The following is an alphabetical list of terms that may be used in discussions of ethylene oxide (EO) sterilization as recognized by medical device manufacturers inspected by the U.S. FDA. All definitions or explanations are specific to the context of EO sterilization processing.<img style="display: block; margin-left: auto; margin-right: auto;" src="https://first-fish.oss-us-west-1.aliyuncs.com/file/2/ethylene-oxide-from-xtal-3d-balls.png" alt="Ethylene-oxide-from-xtal-3D-balls.png" width="800"></p>
<h2><a href="https://www.hzbocon.com/products/precondition-room-and-aeration-room">Aeration:</a>&nbsp;</h2>
<p>The process of removing EO gas from a sterilized product by exposing it to air or other gases to reduce residual EO levels.</p>
<h2>Aeration time:</h2>
<p>The length of time required to remove EO gas from a sterilized product by aeration.</p>
<h2>Bioburden:</h2>
<p>The number and type of microorganisms present on a product prior to sterilization.</p>
<h2><a title="eto chamber" href="https://www.hzbocon.com/products/industry-eto-sterilizer">Chamber:</a></h2>
<p>The sealed container in which the sterilization process takes place.</p>
<h2>Cycle:</h2>
<p>The complete EO sterilization process, including preconditioning, sterilization, and aeration.</p>
<h2>D-value:</h2>
<p>The time required to achieve a one-log reduction in the number of microorganisms at a specific temperature.</p>
<h2>Ethylene oxide (EO):</h2>
<p>A colorless gas is used in sterilization processes due to its ability to penetrate packaging materials and kill microorganisms.</p>
<h2>Gas concentration:</h2>
<p>The amount of EO gas present in the sterilization chamber during the sterilization process.</p>
<h2>Gas diffusion:</h2>
<p>The process by which EO gas molecules move from areas of high concentration to areas of low concentration.</p>
<h2>Gas exposure time:</h2>
<p>The length of time during which a product is exposed to EO gas during the sterilization process.</p>
<h2>Inactivation:</h2>
<p>The process by which microorganisms are rendered non-viable.</p>
<h2>Lethality:</h2>
<p>&nbsp;The ability of a sterilization process to kill microorganisms.</p>
<h2>Preconditioning:</h2>
<p>&nbsp;The process of exposing a product to controlled humidity and temperature conditions prior to the sterilization process.</p>
<h2>Residual EO:</h2>
<p>The amount of EO gas remaining on a sterilized product after aeration.</p>
<h2>Sterilant:</h2>
<p>A substance that is capable of killing microorganisms.</p>
<h2>Sterilization:</h2>
<p>The process of killing or removing all microorganisms from a product.</p>
<h2>Validation:</h2>
<p>The process of verifying that a sterilization process is capable of consistently achieving the desired level of sterilization.</p>

Ethylene Oxide Sterilization Glossary

Publish Time：2023-10-16