ASTM-E2945 2021

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E2945-14(2021) Standard Test Method for Film Permeability Determination Using Static Permeability Cells

Published By	Publication Date	Number of Pages
ASTM	2021

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Categories: 83.140.10 - Films and sheets, ASTM

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Description

ASTM E2945-14-Reapproved2021

Active Standard: Standard Test Method for Film Permeability Determination Using Static Permeability Cells

ASTM E2945

Scope

1.1 This test method covers the measurement of the transmission of a gas through plastic membranes, sheeting, films, and fabric materials using a static sealed diffusion chamber. The test method monitors gas diffusion across a film membrane and provides measurements of (1) gas concentrations on each side of the film membrane and (2) estimates of the mass transfer coefficient (MTC) for the tested gas and film material. The MTC represents the film permeability and is independent of the concentration gradient used during testing, which simplifies some aspects of the experimental design.

1.2 This test method permits the loading of mixed vapors and simultaneous determination of the permeability of one film to various gases.

1.3 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

fumigants; mass transfer coefficient; MTC; plastic film permeability;

ICS Code

ICS Number Code 83.140.10 (Films and sheets)

DOI: 10.1520/E2945-14R21

Additional information

Standard Title	E2945-14(2021) Standard Test Method for Film Permeability Determination Using Static Permeability Cells
Published Code	ASTM
Publication Date	2021
ICS Codes	83.140.10 - Films and sheets