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ASTM D3561-02(2007)e1

Historical Reaffirmation

Standard Test Method for Lithium, Potassium, and Sodium Ions in Brackish Water, Seawater, and Brines by Atomic Absorption Spectrophotometry

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1.1 This test method covers the determination of soluble lithium, potassium, and sodium ions in brackish water, seawater, and brines by atomic absorption spectrophotometry.

1.2 Samples containing from 0.1 to 70000 mg/L of lithium, potassium, and sodium may be analyzed by this test method.

1.3 This test method has been used successfully with artificial brine samples. It is the user's responsibility to ensure the validity of this test method for waters of untested matrices.

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.


Identification of a brackish water, seawater, or brine is determined by comparison of the concentrations of their dissolved constituents. The results are used to evaluate the water as a possible pollutant, or as a commercial source of a valuable constituent such as lithium.

SDO ASTM: ASTM International
Document Number D3561
Publication Date Aug. 1, 2007
Language en - English
Page Count 5
Revision Level 02(2007)e1
Supercedes
Committee D19.05
Publish Date Document Id Type View
June 1, 2016 D3561-16 Revision
Sept. 1, 2011 D3561-11 Revision
Jan. 10, 2002 D3561-96 Revision
Jan. 10, 2002 D3561-02 Revision
Nov. 1, 2021 D3561-16R21E01 Reaffirmation
Aug. 1, 2007 D3561-02R07E01 Reaffirmation