ASTM-E3278 2021

$34.13

E3278-21 Standard Test Method for Bubble Point Pressure of Woven Wire Filter Cloth

Published By	Publication Date	Number of Pages
ASTM	2021

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Category: ASTM

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Description

ASTM E3278-21

Active Standard: Standard Test Method for Bubble Point Pressure of Woven Wire Filter Cloth

ASTM E3278

Scope

1.1 This test method is based on a capillary flow test that measures the pressure required to force an air bubble through a flat specimen of industrial woven wire filter cloth wetted under a test liquid of known surface tension. An established physical phenomenon, the pressure is inversely proportional to the pore size. This test method details the methodology to determine the bubble point pressure, and the applicable variables to calculate a standardized pressure. The test is recommended for filter cloth with a minimum test pressure of 1.0 inches of water.

1.2 A means for determining a pore size calculation factor (CF) is provided to allow the calculation of a pore size from the resultant pressure (see 15.2).

1.3 This test method uses mixed unit of measures. The values stated in inch-pound units shall be considered standard with regard to the bubble point pressure, test fixture, and procedures. The values stated in SI units shall be considered standard for the test fluid properties and pore size.

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

absolute filtration rating; bubble point pressure; bubble point test; capillary flow porometry; hydraulic diameter factor; micron rating; pore size; standardized pressure; tortuosity factor;

ICS Code

ICS Number Code 19.120 (Particle size analysis. Sieving)

DOI: 10.1520/E3278-21

Additional information