seal testing

[awol]

I am familar with how and why metallic components used for containing pressure are testing to 1.25, 1.5, or twice the working pressure.

When specifically testing a mechanical seal or elastomer design, at what pressure above working is the seal testing and how long is the test pressure applied? Is there an ASTM Specification for testing rubber seals?

For example, if a new seal design is tested for four hours at 1.5 times the working pressure and holds, then is this seal design validated for operating pressure for any duration? Any help appreciated. Note these are non o-ring applications. Our seals are a specific design and I am looking for standard guidelines for elastomer testing.

 

[flexibox]

Your questions seems a little confusing to me. Non Oring applications but you want standard guidlines for elastomer testing? What do you really need?
Is this a mecanical seal? Are you dynamic or static testing? Is this a rubber bellows?
More information will help and if you can include a sketch even better

 

[awol]

We manufacture a face seal as part of a larger molded rubber component. Like the face seal on a set of glad hands used for pressure connections by the railroad. The face seals are placed under a clamp load and hold presure. How long is a reasonable time to hold test pressure in order to validate the face seal design at operating pressure? What would be a reasonable test pressure? Rubber extrusion would be the failure mechanism ( I assume) so how should these seals be tested?