ASTM D1434 PDF

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This test method provides for the determination of 1 gas transmission rate GTR , 2 permeance, and, in the case of homogeneous materials, 3 permeability. No other units of measurement are included in this standard. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Correlation of measured values with any given use, such as packaged contents protection, must be determined by experience.

The gas transmission rate is affected by conditions not specifically provided for in these tests, such as moisture content Note 2 , plasticizer content, and nonhomogeneities.

These tests do not include any provision for testing seals that may be involved in packaging applications. Agreement with other methods is sometimes poor and may be material-dependent. The materials being tested often affect the between-laboratory precision. The causes of these variations are not known at this time.

It is suggested that this method not be used for referee purposes unless purchaser and seller can both establish that they are measuring the same quantity to a mutually agreed upon level of precision. Even in essentially homogeneous structures, variations in morphology as indicated, for example, by density and thermal history may influence permeability.

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ASTM D1434

VAC-V1 is applicable to the determination of gas permeability rate, solubility coefficient, diffusion coefficient and permeability coefficient at various temperature of plastic films, laminated films, sheeting, foils and finished packages, etc. VAC-V2 can be used to measure gas permeability rate, solubility coefficient, diffusion coefficient and permeability coefficient at various temperature of plastic films, laminated films, high barrier material, sheets, foils, etc. VAC-VBS is based on the differential pressure method, and can be used for determination of gas transmission rate of films, sheeting, high barrier materials and aluminum foils. Need help or have a question? For more information on how Labthink can help your company profit through testing, please Click the button. VAC-V1 Gas Permeability Tester VAC-V1 is applicable to the determination of gas permeability rate, solubility coefficient, diffusion coefficient and permeability coefficient at various temperature of plastic films, laminated films, sheeting, foils and finished packages, etc.

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Historical Version s - view previous versions of standard. More F Correlation of measured values with any given use, such as packaged contents protection, must be determined by experience. The gas transmission rate is affected by conditions not specifically provided for in these tests, such as moisture content Note 2 , plasticizer content, and nonhomogeneities. These tests do not include any provision for testing seals that may be involved in packaging applications. Agreement with other methods is sometimes poor and may be material-dependent.

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