NF ISO 2782-1
Rubber, vulcanized or thermoplastic - Determination of permeability to gases - Part 1 : Differential-pressure methods
ISO 2782-1:2016 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: - pressure sensor method (using vacuum): for determining the gas transmission rate, gas permeability coefficient, gas diffusion coefficient and gas solubility coefficient; - simplified sensor method (using applied pressure): for determining the gas permeability coefficient only; - 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.
ISO 2782-1:2016 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:
- pressure sensor method (using vacuum): for determining the gas transmission rate, gas permeability coefficient, gas diffusion coefficient and gas solubility coefficient;
- simplified sensor method (using applied pressure): for determining the gas permeability coefficient only;
- 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.
Le présent document spécifie deux méthodes pour déterminer la perméabilité aux gaz des caoutchoucs vulcanisés ou thermoplastiques sous une pression différentielle partielle.
<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>
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1 Domaine d'application
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2 Références normatives
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3 Termes et définitions
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4 Principe
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5 Méthode manométrique
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6 Méthode manométrique simplifiée
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7 Méthode par chromatographie en phase gazeuse
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8 Rapport d'essai
- Annexe A Programme d'étalonnage
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