ISO 14644-1 is an international standard specifying the requirements for air cleanliness in cleanrooms and other controlled environments, and sets limits for the concentration of airborne particles of different sizes.

ISO 14644-1 O-rings are typically made from materials that are suitable for use in cleanrooms and other controlled environments. These materials are selected based on their properties such as chemical resistance, temperature resistance, and mechanical properties, as well as their compatibility with the cleanroom environment.

One of the key requirements of ISO 14644-1 O-rings is that they must be manufactured in a clean and controlled environment to prevent contamination. This means that the manufacturing process must be carried out in a cleanroom or other controlled environment that meets the requirements of the standard. The manufacturing process must also be validated to ensure that it produces O-rings that meet the required cleanliness and sterility levels.

ISO 14644-1 O-rings must also be tested to ensure that they meet the requirements of the standard. This includes testing for particle release, chemical resistance, and other properties that are relevant to their intended use in cleanrooms and other controlled environments.

One of the main benefits of using ISO 14644-1 O-rings in cleanrooms and other controlled environments is that they provide a high level of assurance that the environment is clean and sterile. By using O-rings that have been manufactured and tested in accordance with the requirements of the standard, cleanroom operators can be confident that their environment meets the required cleanliness and sterility levels and is suitable for use in sensitive manufacturing processes.