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ASTM D3868-04

Historical Revision

Standard Test Method for Fluoride Ions in Brackish Water, Seawater, and Brines

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1.1 This test method covers the determination of soluble fluoride ions in brackish water, seawater and brines by use of a fluoride selective electrode.

1.2 Samples containing from 1.0 to 25 mg/L can be analyzed by this test method.

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.


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 origin of the water, determine if it is a possible pollutant, or if it is related to a potential source of a valuable mineral. For example, in geochemical studies some correlation data indicate that fluoride is an indirect indicator of the presence of lithium.

SDO ASTM: ASTM International
Document Number D3868
Publication Date March 1, 2004
Language en - English
Page Count 3
Revision Level 04
Supercedes
Committee D19.05
Publish Date Document Id Type View
March 15, 2015 D3868-15 Revision
May 15, 2009 D3868-09 Revision
March 1, 2004 D3868-04 Revision
April 1, 2023 D3868-15R23 Reaffirmation
June 10, 1999 D3868-95R99 Reaffirmation