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1.1 This test method covers a rapid procedure for squeezing pore water from fine-grained soils for the purpose of determining the amount of soluble salts present in the extracted pore water.
1.2 This test method was developed for soils having a water content equal to or greater than approximately 14 %, for example, marine soils. An extensive summary of procedures for extracting pore water from soils has been presented by Kriukov and Manheim (1).
1.3 This test method is not generally applicable for determining the soluble salt content of the pore water extracted from coarse-grained soils, such as clean sands and gravels.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D3740 Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
D6026 Practice for Using Significant Digits in Geotechnical Data
E832 Specification for Laboratory Filter Papers
Federal DocumentGG-S-945a Specification for Syringe and Needle, Disposable, Hypodermic, Sterile, Single Injection Available from Naval Publications and Forms Center, 5801 Tabor Ave., Philadelphia, PA, 19120.
ICS Number Code 13.080.10 (Chemical characterist of soil)
UNSPSC Code 11111501(Soil); 41113900(Soil measuring equipment)
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ASTM D4542-95(2001), Standard Test Method for Pore Water Extraction and Determination of the Soluble Salt Content of Soils by Refractometer, ASTM International, West Conshohocken, PA, 1995, www.astm.orgBack to Top