ASTM D4328-18 PDF

Scope: 1.1 This practice covers the calculation of supersaturation of barium sulfate, strontium sulfate, and calcium sulfate dihydrate (gypsum) in brackish water, seawater, and brines in which barium, strontium, and calcium ions either coexist or exist individually in solution in the presence of sulfate ions. 1.2 This practice is not applicable for calculating calcium sulfate dihydrate supersaturation if the temperatures of saline waters under investigation exceed 95°C. At temperatures above 95°C, hemianhydrate and anhydrite would be major insoluble forms. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D4328-18 Referenced Document

ASTM D1129 Standard Terminology Relating to Water
ASTM D3352 Standard Test Method for Strontium Ion in Brackish Water, Seawater, and Brines
ASTM D3370 Standard Practices for Sampling Water from Closed Conduits
ASTM D3561 Standard Test Method for Lithium, Potassium, and Sodium Ions in Brackish Water, Seawater, and Brines by Atomic Absorption Spectrophotometry
ASTM D3651 Standard Test Method for Barium in Brackish Water, Seawater, and Brines*， 2021-11-01 Update
ASTM D3986 Standard Test Method for Barium in Brines, Seawater, and Brackish Water by Direct-Current Argon Plasma Atomic Emission Spectroscopy
ASTM D511 Standard Test Methods for Calcium and Magnesium In Water
ASTM D512 Standard Test Methods for Chloride Ion In Water
ASTM D513 Standard Test Methods for Total and Dissolved Carbon Dioxide in Water
ASTM D516 Standard Test Method for Sulfate Ion in Water

2018 ASTM D4328-18 Standard Practice for Calculation of Supersaturation of Barium Sulfate, Strontium Sulfate, and Calcium Sulfate Dihydrate (Gypsum) in Brackish Water, Seawater, and Brines
1970 ASTM D4328-13 Calculation of supersaturation of barium sulfate, strontium sulfate and anhydrous calcium sulfate (gypsum) in brackish water, seawater and brine
2008 ASTM D4328-08(2013) Standard Practice for Calculation of Supersaturation of Barium Sulfate, Strontium Sulfate, and Calcium Sulfate Dihydrate lpar;Gypsumrpar; in Brackish Water, Seawater, and Brines
2008 ASTM D4328-08 Standard Practice for Calculation of Supersaturation of Barium Sulfate, Strontium Sulfate, and Calcium Sulfate Dihydrate (Gypsum) in Brackish Water, Seawater, and Brines
2003 ASTM D4328-03 Standard Practice for Calculation of Supersaturation of Barium Sulfate, Strontium Sulfate, and Calcium Sulfate Dihydrate (Gypsum) in Brackish Water, Seawater, and Brines
1997 ASTM D4328-97 Standard Practice for Calculation of Supersaturation of Barium Sulfate, Strontium Sulfate, and Calcium Sulfate Dihydrate (Gypsum) in Brackish Water, Seawater, and Brines
1984 ASTM D4328-84(1993)e1 Standard Practice for Calculation of Supersaturation of Barium Sulfate, Strontium Sulfate, and Calcium Sulfate Dihydrate (Gypsum) in Brackish Water, Seawater, and Brines