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

Standard No.

ASTM E2945-14(2021)

Release Date

2021

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM E2945-14(2021)

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.

ASTM E2945-14(2021) Referenced Document

• ASTM D1898 
• ASTM D618 Standard Practice for Conditioning Plastics for Testing*， 2021-07-15 Update
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ASTM E2945-14(2021) history

• 2021 ASTM E2945-14(2021) Standard Test Method for Film Permeability Determination Using Static Permeability Cells
• 2014 ASTM E2945-14 Standard Test Method for Film Permeability Determination Using Static Permeability Cells