In Reply to: Coefficient permeation/diffusion posted by Fabricio Santos on October 31, 2006 at 20:39:09:

Fabricio,

I have one figure for the permeability of hydrogen sulfide in polyvinylidene fluoride (PVDF). At 23 degrees Celsius and 1 Bar gas partial pressure:

1.7 E-14 [m3 stp / m3 x bar] x [m2/s]

Do not think this figure is applicable at system pressures higher than 10 bars.

Cheers,
Rodney