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This test method was used to determine the flow rate of water and suspended solids through a geosynthetic permeable bag used to contain high water content slurry such as dredged material.
Formerly under the jurisdiction of Committee D35 on Geosynthetics, this test method was withdrawn in July 2020 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.
1.1 This test method is used to determine the flow rate of water and suspended solids through a geosynthetic permeable bag used to contain high water content slurry such as dredged material.
1.2 The results for the water and sediment that pass through the geotextile bag are shown as liters of water per time period, and the percent total suspended solids in milligrams per liter or parts per million.
1.3 The flow rate is the average rate of passage of a quantity of solids and water through the bag over a specific time period.
1.4 This test method requires several pieces of specified equipment such as an integrated water sampler, analytical balance, geotextile container, frame to hold the geotextile container, and clean containers to collect the decant water and a representative sample of high water content material from the proposed dredge area or slurry source.
1.5 The values stated in SI units are to be regarded as the standard. The values in parentheses are provided for information only.
1.6 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.
D123 Terminology Relating to Textiles
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D4354 Practice for Sampling of Geosynthetics for Testing
D4439 Terminology for Geosynthetics
D4759 Practice for Determining the Specification Conformance of Geosynthetics
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ASTM D7701-11, Standard Test Method for Determining the Flow Rate of Water and Suspended Solids from a Geotextile Bag (Withdrawn 2020), ASTM International, West Conshohocken, PA, 2011, www.astm.orgBack to Top