Figure 7
From: Characterization technique of gases permeation properties in polymers: H2, He, N2 and Ar gas
(a) Gas uptake (\({C}_{\infty }\)) and (b) diffusivity (D) versus exposed pressure for four gases in cylindrical EPDM with different thicknesses and spherical EPDM. R indicates the radius of cylindrical and spherical EPDM. T indicates the thickness of cylindrical EPDM.
