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ASTM International - ASTM D4542-15

Standard Test Methods for Pore Water Extraction and Determination of the Soluble Salt Content of Soils by Refractometer

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Organization: ASTM International
Publication Date: 1 November 2015
Status: active
Page Count: 6
ICS Code (Chemical characteristics of soils): 13.080.10
significance And Use:

4.1 The soluble salt content may be used to correct the index properties of soils such as water content, void ratio, specific gravity, degree of saturation, and dry density).

4.2 Minimize... View More

scope:

1.1 These test methods cover a rapid procedure for squeezing pore water from finegrained soils for the purpose of determining the amount of soluble salts present in the extracted pore water.

1.2 These test methods were 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).2

1.3 These test methods are 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 Test Method A provides a procedure using a refractometer with a refraction index scale; Test Method B provides a procedure using a refractometer with a parts per thousand (ppt) scale.

1.5 Units-The values stated in SI units are to be regarded as the standard.

1.6 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026 unless superseded by these test methods.

1.6.1 The procedures used to specify how data are collected/recorded and calculated in the standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user's objectives; and it is common practice to increase or reduce significant digits of reported data to be commensurate with these considerations. It is beyond the scope of these test methods to consider significant digits used in analysis methods for engineering data.

1.7 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.

1.8 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.

Document History

ASTM D4542-15
November 1, 2015
Standard Test Methods for Pore Water Extraction and Determination of the Soluble Salt Content of Soils by Refractometer
1.1 These test methods cover a rapid procedure for squeezing pore water from finegrained soils for the purpose of determining the amount of soluble salts present in the extracted pore water....
July 1, 2007
Standard Test Method for Pore Water Extraction and Determination of the Soluble Salt Content of Soils by Refractometer
The soluble salt content may be used to correct the index properties of soils (water content, void ratio, specific gravity, degree of saturation, and dry density). It is necessary to minimize the...
September 15, 1995
Standard Test Method for Pore Water Extraction and Determination of the Soluble Salt Content of Soils by Refractometer
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...
September 15, 1995
Standard Test Method for Pore Water Extraction and Determination of the Soluble Salt Content of Soils by Refractometer
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...
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