ASTM D4491-99a
Historical Standard: ASTM D4491-99a Standard Test Methods for Water Permeability of Geotextiles by Permittivity
SUPERSEDED (see Active link, below)
ASTM D4491
1. Scope
1.1 These test methods provide procedures for determining the hydraulic conductivity (water permeability) of geotextiles in terms of permittivity under standard testing conditions, in the uncompressed state. Included are two procedures: the constant head method and the falling head method.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units stated in parentheses are provided for information only.
1.3 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D123 Terminology Relating to Textiles
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D4439 Terminology for Geosynthetics
D5199 Test Method for Measuring the Nominal Thickness of Geosynthetics
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
Keywords
constant head; falling head; geotextiles; permeability; permittivity; Constant head testing; Drainage materials/systems; Falling head test; Flow and flow rate--soil/rock/related materials; Geosynthetics; Hydraulic conductivity/transmissivity; Liquids--geosynthetic/geothermal applications; Penetration--soil; Permeability--geosynthetics; Permittivity method; Water analysis; Water penetration;
ICS Code
ICS Number Code 59.080.70 (Geotextiles)
DOI: 10.1520/D4491-99A
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