ASTM D1141-98(2003)

Standard Practice for the Preparation of Substitute Ocean Water

SIGNIFICANCE AND USE
This substitute ocean water may be used for laboratory testing where a reproducible solution simulating sea water is required. Examples are for tests on oil contamination, detergency evaluation, and corrosion testing.
Note 2—The lack of organic matter, suspended matter, and marine life in this solution does not permit unqualified acceptance of test results as representing performance in actual ocean water. Where corrosion is involved, the results obtained from laboratory tests may not approximate those secured under natural testing conditions that differ greatly from those of the laboratory, and especially where effects of velocity, salt atmospheres, or organic constituents are involved. Also the rapid depletion of reacting elements present in low concentrations suggests caution in direct application of results.
SCOPE
1.1 This practice covers the preparation of solutions containing inorganic salts in proportions and concentrations representative of ocean water.
Note 1—Since the concentrations of ocean water varies with sampling location, the gross concentration employed herein is an average of many reliable individual analyses. Trace elements, occurring naturally in concentrations below 0.005 mg/L, are not included.
1.2 This practice provides three stock solutions, each relatively concentrated but stable in storage. For preparation of substitute ocean water, aliquots of the first two stock solutions with added salt are combined in larger volume. An added refinement in adjustment of heavy metal concentration is provided by the addition of a small aliquot of the third stock solution to the previous solution.
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.

General Information

• Status: Historical
• Publication Date: 09-Aug-2003
• ICS: 13.060.10 - Water of natural resources
• Technical Committee: D19 - Water
• Drafting Committee: D19.02 - Quality Systems, Specification, and Statistics

Relations

• Replaces: ASTM D1141-98e1 - Standard Practice for the Preparation of Substitute Ocean Water
• Effective Date: 10-Aug-2003
• Replaced By: ASTM D1141-98(2008) - Standard Practice for the Preparation of Substitute Ocean Water
• Effective Date: 15-Jul-2008
• Referred By: ASTM D7258-23 - Standard Specification for Polymeric Piles
• Effective Date: 10-Aug-2003
• Referred By: ASTM G208-12(2020) - Standard Practice for Evaluating and Qualifying Oilfield and Refinery Corrosion Inhibitors Using Jet Impingement Apparatus
• Effective Date: 10-Aug-2003
• Referred By: ASTM D1183-03(2019) - Standard Practices for Resistance of Adhesives to Cyclic Laboratory Aging Conditions
• Effective Date: 10-Aug-2003
• Referred By: ASTM E1681-23 - Standard Test Method for Determining Threshold Stress Intensity Factor for Environment-Assisted Cracking of Metallic Materials
• Effective Date: 10-Aug-2003
• Referred By: ASTM G185-06(2020)e1 - Standard Practice for Evaluating and Qualifying Oil Field and Refinery Corrosion Inhibitors Using the Rotating Cylinder Electrode
• Effective Date: 10-Aug-2003
• Referred By: ASTM D8193-18 - Standard Test Method for Total Oil and Grease (TOG) and Total Petroleum Hydrocarbon (TPH) in Water and Wastewater with Solvent Extraction Using Non-Dispersive Mid-IR Transmission Spectroscopy
• Effective Date: 10-Aug-2003
• Referred By: ASTM G205-16 - Standard Guide for Determining Emulsion Properties, Wetting Behavior, and Corrosion-Inhibitory Properties of Crude Oils
• Effective Date: 10-Aug-2003
• Referred By: ASTM D2777-21 - Standard Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
• Effective Date: 10-Aug-2003
• Referred By: ASTM D5905-98(2018) - Standard Practice for the Preparation of Substitute Wastewater
• Effective Date: 10-Aug-2003
• Referred By: ASTM G184-06(2020)e1 - Standard Practice for Evaluating and Qualifying Oil Field and Refinery Corrosion Inhibitors Using Rotating Cage
• Effective Date: 10-Aug-2003
• Referred By: ASTM G44-21 - Standard Practice for Exposure of Metals and Alloys by Alternate Immersion in Neutral 3.5 % Sodium Chloride Solution
• Effective Date: 10-Aug-2003
• Referred By: ASTM G39-99(2021) - Standard Practice for Preparation and Use of Bent-Beam Stress-Corrosion Test Specimens
• Effective Date: 10-Aug-2003
• Referred By: ASTM D3867-16(2021)e1 - Standard Test Methods for Nitrite-Nitrate in Water
• Effective Date: 10-Aug-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 1141–98 (Reapproved 2003)
Standard Practice for
the Preparation of Substitute Ocean Water
This standard is issued under the fixed designation D 1141; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope of Standard and Reagent Solutions for ChemicalAnalysis
1.1 This practice covers the preparation of solutions con-
3. Terminology
taining inorganic salts in proportions and concentrations rep-
2 3.1 Definitions—For definitions of terms used in this prac-
resentative of ocean water.
tice, refer to Terminology D 1129.
NOTE 1—Since the concentrations of ocean water varies with sampling
3.2 Definition Of Term Specific to This Standard:
location, the gross concentration employed herein is an average of many
3.2.1 chlorinity, , n—the weight of silver ion (g) required to
reliable individual analyses. Trace elements, occurring naturally in con-
completely precipitate the halides in 0.3285 kg of water (g/kg).
centrations below 0.005 mg/L, are not included.
1.2 This practice provides three stock solutions, each rela- 4. Significance and Use
tively concentrated but stable in storage. For preparation of
4.1 This substitute ocean water may be used for laboratory
substitute ocean water, aliquots of the first two stock solutions
testing where a reproducible solution simulating sea water is
with added salt are combined in larger volume. An added
required. Examples are for tests on oil contamination, deter-
refinement in adjustment of heavy metal concentration is
gency evaluation, and corrosion testing.
provided by the addition of a small aliquot of the third stock
NOTE 2—The lack of organic matter, suspended matter, and marine life
solution to the previous solution.
in this solution does not permit unqualified acceptance of test results as
1.3 This standard does not purport to address all of the
representing performance in actual ocean water. Where corrosion is
safety concerns, if any, associated with its use. It is the
involved, the results obtained from laboratory tests may not approximate
responsibility of the user of this standard to establish appro-
those secured under natural testing conditions that differ greatly from
priate safety and health practices and determine the applica-
those of the laboratory, and especially where effects of velocity, salt
atmospheres,ororganicconstituentsareinvolved.Alsotherapiddepletion
bility of regulatory limitations prior to use.
of reacting elements present in low concentrations suggests caution in
2. Referenced Documents direct application of results.
2.1 ASTM Standards:
5. Reagents and Materials
D 1129 Terminology Relating to Water
3 5.1 Purity of Reagents—Reagent grade chemicals shall be
D 1193 Specification for Reagent Water
used in all tests. Unless otherwise indicated, it is intended that
E200 PracticeforPreparation,Standardization,andStorage
all reagents shall conform to the specifications of the Commit-
tee onAnalytical Reagents of theAmerican Chemical Society.
This practice is under the jurisdiction of ASTM Committee D19 on Water and
Other grades may be used, provided it is first ascertained that
is the responsibility of Subcommittee D19.02 on General Specifications, Technical
the reagent is of sufficiently high purity to permit its use
Resources, and Statistical Methods.
without lessening the accuracy of the determination.
Current edition approved Aug. 10, 2003. Published September 2003. Originally
e1
approved in 1950. Last previous edition approved in 1998 as D 1141–98 .
This practice is based upon the following studies:
May and Black, “Synthetic Ocean Water,” Naval Research Laboratory Report
P-2909, August 1946. Annual Book of ASTM Standards, Vol 15.05.
May, T. P. and Alexander, A. L., “Spray Testing with Natural and Synthetic Sea Reagent Chemicals, American Chemical Society Specifications , American
Water, Part I–Corrosion Characteristics in the Testing of Metals,” Proceedings, Chemical Society, Washington, DC. For suggestions on the testing of reagents not
ASTM, Vol 50, 1950. listed by the American Chemical Society, see Analar Standards for Laboratory
Alexander, A. L. and May, T. P., “Spray Testing with Natural and Synthetic Sea Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia
Water, Part II–A Study of Organic Coatings,” Proceedings, ASTM, Vol 50, 1950
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