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ASTM D5298-94

Historical Revision

Standard Test Method for Measurement of Soil Potential (Suction) Using Filter Paper

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1.1 This test method covers laboratory filter papers as passive sensors to evaluate the soil matric (matrix) and total potential (suction), a measure of the free energy of the pore-water or tension stress exerted on the pore-water by the soil matrix (1, 2) . The term potential or suction is descriptive of the energy status of soil water.

1.2 This test method controls the variables for measurement of the water content of filter paper that is in direct contact with soil or in equilibrium with the partial pressure of water vapor in the air of an airtight container enclosing a soil specimen. The filter paper is enclosed with a soil specimen in the airtight container until moisture equilibrium is established; that is, the partial pressure of water vapor in the air is in equilibrium with the vapor pressure of pore-water in the soil specimen.

1.3 This test method provides a procedure for calibrating different types of filter paper for use in evaluating soil matric and total potential.

1.4 The values stated in SI units are to be regarded as the standard. The inch-pounds units given in parentheses are approximate.

1.5 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.


SDO ASTM: ASTM International
Document Number D5298
Publication Date Jan. 1, 1994
Language en - English
Page Count 6
Revision Level 94
Supercedes
Committee D18.04
Publish Date Document Id Type View
Nov. 15, 2016 D5298-16 Revision
July 1, 2010 D5298-10 Revision
June 10, 2003 D5298-03 Revision
Jan. 1, 1994 D5298-94 Revision