4.1 This classification is intended to provide information on currently available commercial seals as a guide in their selection for specific applications. This classification is not intended to inhibit the innovation or development of new types of seals.

1.1 This classification covers a specific category of commercially available passive seals.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.