Standard Historical Last Updated: Oct 06, 2015 Track Document
ASTM D3875-08

Standard Test Method for Alkalinity in Brackish Water, Seawater, and Brines

Standard Test Method for Alkalinity in Brackish Water, Seawater, and Brines D3875-08 ASTM|D3875-08|en-US Standard Test Method for Alkalinity in Brackish Water, Seawater, and Brines Standard new BOS Vol. 11.02 Committee D19
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Significance and Use

Alkalinity as carbonate and bicarbonate of saline water is very important in chemical waterflooding or tertiary recovery processes for recovering petroleum. Alkaline waters offer better wetting to the formation rock and improve oil release. As an additional benefit, ions that provide alkalinity adsorb on rock surfaces occupying adsorption sites and decrease the loss of recovery chemical by adsorption. Determination of alkalinity in waters used in tertiary recovery processes is therefore very important.

An alkalinity value is necessary in the calculation of carbonate scaling tendencies of saline waters. It is also necessary to determine the alkalinity if the ionic balance of a water analysis is to be used as a check of the reliability of the analysis.

Scope

1.1 This test method covers the determination of alkalinity in brackish water, seawater, and brines.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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.

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Details
Book of Standards Volume: 11.02
Developed by Subcommittee: D19.05
Pages: 4
DOI: 10.1520/D3875-08
ICS Code: 13.060.50