This International Standard describes two procedures for measuring the permeability of rubber to gases under steady-state conditions. One uses a horizontal measuring device for measurements at constant pressure and the other uses a vertical measuring de-vice for measurements at constant volume or con-stant pressure. The results obtained by these procedures may be extrapolated to thicknesses of material different from that of the test piece providing the rubber is homogeneous and isotropic.
The procedures apply to solid rubber of hardness not less than 35 IRHD and to gases such as air, nitrogen, oxygen, hydrogen, liquified petroleum gas (in gaseous form) and coal gas. Errors may be introduced if the gas used appreciably swells the rubber under test.
BS 903-A30:1996 history
2018BS ISO 2782-2:2018 Rubber, vulcanized or thermoplastic. Determination of permeability to gases. Equal-pressure method
2012BS ISO 2782-2:2012 Rubber, vulcanized or thermoplastic. Determination of permeability to gases. Equal-pressure method
0000 BS ISO 2782:2007
1996BS 903-A30:1996 Physical testing of rubber - Determination of permeability to gases