This part of ISO6194 describes seals utilising elastomeric sealing elements. They are considered suitable for use under low-pressure conditions (see 6.1).
This part of ISO6194 shows seal types and examples. It also specifies the nominal dimensions and tolerances of the seals, shafts and housings, as well as a dimensional identification code.
NOTE ISO6194 is complementary to ISO16589 which covers seals incorporating thermoplastic sealing elements.