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<p>This document specifies three methods for the determination of the permeability to gases of vulcanized or thermoplastic rubber under a differential partial pressure.</p>
<p>The three methods specified are as follows:</p>
<p>— a pressure sensor method (using vacuum): for determining the gas transmission rate, gas permeability coefficient, gas diffusion coefficient and gas solubility coefficient;</p>
<p>— a simplified sensor method (using applied pressure): for determining the gas permeability coefficient only;</p>
<p>— a gas-chromatographic method: for determining the gas transmission rate and gas permeability coefficient.</p>
<p>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.</p>
Reģistrācijas numurs (WIID)
84136
Darbības sfēra
<p>This document specifies three methods for the determination of the permeability to gases of vulcanized or thermoplastic rubber under a differential partial pressure.</p>
<p>The three methods specified are as follows:</p>
<p>— a pressure sensor method (using vacuum): for determining the gas transmission rate, gas permeability coefficient, gas diffusion coefficient and gas solubility coefficient;</p>
<p>— a simplified sensor method (using applied pressure): for determining the gas permeability coefficient only;</p>
<p>— a gas-chromatographic method: for determining the gas transmission rate and gas permeability coefficient.</p>
<p>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.</p>
