Norm

ASTM E2945-14

Standard Test Method for Film Permeability Determination Using Static Permeability Cells

61,51

Over deze norm

Status Definitief
Aantal pagina's 12
Commissie E35.22
Gepubliceerd op 01-02-2014
Taal Engels

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 and health practices and determine the applicability of regulatory limitations prior to use.

Details

ICS-code 83.140.10
Nederlandse titel Standard Test Method for Film Permeability Determination Using Static Permeability Cells
Engelse titel Standard Test Method for Film Permeability Determination Using Static Permeability Cells

Winkelwagen

Subtotaal:

Ga naar winkelwagen