scope:

This International Standard gives basic directions for measuring the permeability of rubber to gases at steady state conditions, when a constant pressure is maintained on each of the end faces of the rubber to be tested. Results obtained by this test procedure should not be extrapolated to thicknesses of material considerably different from that of the test piece. It applies to solid rubber of a hardness not less than 35 IRHD and to gases such as air, nitrogen, oxygen, hydrogen, liquefied petroleum gas (in gaseous form) and coal gas. Errors may be introduced if the gas used appreciably swells the rubber under test.