ASTM D4130-03

Standard Test Method for Sulfate Ion in Brackish Water, Seawater, and Brines

SIGNIFICANCE AND USE
The determination of sulfate and other dissolved constituents is important in identifying the source of brines produced during the drilling and production phases of crude oil or natural gas.
SCOPE
1.1 This test method covers the turbidimetric determination of sulfate ion in brackish water, seawater, and brines. It has been used successfully with synthetic brine grade waters; however, it is the user's responsibility to ensure the validity of this test method to other matrices.
1.2 This test method is applicable to waters having an ionic strength greater than 0.65 mol/L and a sulfate ion concentration greater than 25 mg/L. A concentration less than 25 mg/L sulfate can be determined by using a standard addition method.
1.3 For brines having an ionic strength of less than 0.65 mol/L, refer to Test Methods D 516.
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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 09-Jun-2003
• ICS: 13.060.50 - Examination of water for chemical substances
• Technical Committee: D19 - Water
• Drafting Committee: D19.05 - Inorganic Constituents in Water

Relations

• Replaces: ASTM D4130-99 - Standard Test Method for Sulfate Ion in Brackish Water, Seawater, and Brines
• Effective Date: 10-Jun-2003
• Replaced By: ASTM D4130-08 - Standard Test Method for Sulfate Ion in Brackish Water, Seawater, and Brines
• Effective Date: 15-Nov-2008
• Referred By: ASTM C1797-23 - Standard Specification for Ground Calcium Carbonate and Aggregate Mineral Fillers for use in Hydraulic Cement Concrete
• Effective Date: 10-Jun-2003
• Referred By: ASTM D7684-11(2020) - Standard Guide for Microscopic Characterization of Particles from In-Service Lubricants
• Effective Date: 10-Jun-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D 4130–03
Standard Test Method for
1
Sulfate Ion in Brackish Water, Seawater, and Brines
This standard is issued under the fixed designation D 4130; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope* E275 Practice for Describing and Measuring Performances
of Ultraviolet, Visible, and Near Infrared Spectrophotom-
1.1 This test method covers the turbidimetric determination
4
eters
of sulfate ion in brackish water, seawater, and brines. It has
been used successfully with synthetic brine grade waters;
3. Terminology
however, it is the user’s responsibility to ensure the validity of
3.1 Definitions—For definitions of terms used in this test
this test method to other matrices.
method, refer to Terminology D1129.
1.2 This test method is applicable to waters having an ionic
strengthgreaterthan0.65mol/Landasulfateionconcentration
4. Summary of Test Method
greaterthan25mg/L.Aconcentrationlessthan25mg/Lsulfate
4.1 Asulfate ion is converted to a barium sulfate suspended
can be determined by using a standard addition method.
under controlled conditions. A glycerin-acid solution is added
1.3 For brines having an ionic strength of less than 0.65
to acidify and stabilize the suspension.Acalculated volume of
mol/L, refer to Test Methods D516.
a NaCl solution is added to adjust the ionic strength to a set
1.4 This standard does not purport to address all of the
value of 2 mol/L (Note 1). The turbidity resulting upon
safety concerns, if any, associated with its use. It is the
addition of barium chloride is determined by a photoelectric
responsibility of the user of this standard to establish appro-
colorimeter and compared to a curve prepared from standard
priate safety and health practices and determine the applica-
sulfate solutions.
bility of regulatory limitations prior to use.
NOTE 1—The ionic strength (IS) of the sample is calculated from the
2. Referenced Documents + 2+ 2+ − +
concentrationofthemajorionconstituents(Na ,Ca ,Mg ,Cl ),(K
2+
and Sr if their concentration exceeds 2000 mg/L) as follows:
2.1 ASTM Standards:
2
D516 Test Methods for Sulfate Ion in Water
where:
2
D1129 Terminology Relating to Water 2
IS, mol/L = 1/2 ( CZ ,
i i
D1192 Specification for Equipment for Sampling Water
C = g/L ion i/molecular weight ion, i, and
i
2
and Steam in Closed Conduits Z = valence of ion i.
i
2
D1193 Specification for Reagent Water
5. Significance and Use
D2777 Practice for Determination of Precision and Bias of
2
Applicable Methods of Committee D-19 on Water 5.1 The determination of sulfate and other dissolved con-
D3370 Practices for Sampling Water from Closed Con-
stituents is important in identifying the source of brines
2
duits producedduringthedrillingandproductionphasesofcrudeoil
2
D5810 Guide for Spiking into Aqueous Samples
or natural gas.
D5847 Practice for Writing Quality Control Specifications
3 6. Interferences
for Standard Test Methods for Water Analysis
6.1 Suspended matter in the sample must be removed. Dark
colors that cannot be compensated for in the procedure
1
This test method is under the jurisdiction of ASTM Committee D19 on Water
interfere with the measurement of suspended barium sulfate
and is the direct responsibility of Subcommittee D19.05 on Inorganic Constituents
(BaSO ).
in Water.
4
Current edition approved June 10, 2003. Published July 2003. Originally
approved in 1982. Last previous edition approved in 1999 as D 4130–99.
2
Annual Book of ASTM Standards, Vol 11.01.
3 4
Annual Book of ASTM Standards, Vol 11.02. Annual Book of ASTM Standards, Vol 03.06.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D 4130–03
7. Apparatus 100mLwithwater.Adjustthetemperatureofthesesolutionsto
25 6 2°C. These solutions will contain 1.0, 2.0, 3.0, 4.0, 5.0,
7.1 Photometer—A filter photometer or a spectrophotom-
6.0, 8.0, and 10.0 mg of sulfate ion, respectively.
eter for measurements between 400 to 450 nm, the preferable
10.2 Follow the procedure as given in 11.6-11.8. Prepare a
wavelength being 425 nm. The cell for the instrument must
calibration curve showing sulfate ion content in milligrams on
have a light path of 20 6 2 mm and hold a volume of 25 mL.
the linear axis with the corresponding percent transmittance
Filter photometers, spectrophotometers, and photometric prac-
(%T) reading of the photometer on the logarithmic axis of a
tices prescribed in this test method shall conform to Practice
one cycle se
...