M00019315
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ISO DIS 2782-1 2015 Edition, May 20, 2015 RUBBER, VULCANIZED OR THERMOPLASTIC - DETERMINATION OF PERMEABILITY TO GASES - PART 1: DIFFERENTIAL-PRESSURE METHODS
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Availability date: 07/14/2021
Description / Abstract:
This part of ISO 2782 specifies three methods for the
determination of the permeability to gases of vulcanized or
thermoplastic rubber under a differential partial pressure.
The three methods specified are as follows:
— a pressure sensor method (using vacuum): for determining the
gas transmission rate, gas permeability coefficient, gas diffusion
coefficient and gas solubility coefficient;
— a simplified sensor method (using applied pressure): for
determining the gas permeability coefficient only;
— a gas-chromatographic method: for determining the gas
transmission rate and gas permeability coefficient.
These methods apply to vulcanized and thermoplastic rubbers of
hardness not less than 35 IRHD (international rubber hardness
degrees) and to both single gases and mixtures of gases.