I work for a special project in oil and gas industry. The downstream feed consists of several gas particles, among which hydorgen sulfide (H2S). Does anyone know the coefficient of permeation and diffusion of H2S in polyvinylidene fluoride (PVDF)? Can we apply this figure at high partial pressures, e.g. more than 30 Bar?

Can anybody help me?

Regards,
Fabricio