ASTM D3325-90(2020)
(Practice)Standard Practice for Preservation of Waterborne Oil Samples
Standard Practice for Preservation of Waterborne Oil Samples
ABSTRACT
This practice establishes the standard method of preserving waterborne oil samples from the time of collection to the time of analysis. Information is provided to ensure sample integrity and to avoid contamination and to minimize microbial degradation. This practice is for controlled field or laboratory conditions and specifies thorough preparation of equipment and precise operation. If, however, these details must be compromised in a field emergency, nonstandard simplifications that will minimize or eliminate consequent errors are recommended. This procedure requires the use of the following apparatuses: sample containers, preferably borosilicate glass (plastic and metal are not acceptable ); closures; an explosion-proof refrigerator; and shipping containers (sturdy cartons or wooden boxes). Samples may be of several types, such as tar balls, collected oil, oil-water mixtures, emulsions, and oil and water on collecting devices such as silanized glass cloth, TFE-fluorocarbon polymer, or other materials. Instructions are given for the care of samples to minimize changes due to autoxidation and microbial attack between the time of sampling and the time of testing. Services available for transportation of samples are described as well.
SCOPE
1.1 This practice covers the preservation of waterborne oil samples from the time of collection to the time of analysis. Information is provided to ensure sample integrity and to avoid contamination and to minimize microbial degradation.
1.2 The practice is for controlled field or laboratory conditions and specifies thorough preparation of equipment and precise operation. Where these details must be compromised in a field emergency, nonstandard simplifications are recommended that will minimize or eliminate consequent errors.
Note 1: Procedures for the analysis of oil spill samples are Practices D3326, D3415, and D4489, and Test Methods D3650, D3327, D3328, and D3414. A guide to the use of ASTM test methods for the analysis of oil spill samples is found in Practice D3415.
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.
General Information
Relations
Standards Content (Sample)
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.
Designation: D3325 − 90 (Reapproved 2020)
Standard Practice for
Preservation of Waterborne Oil Samples
This standard is issued under the fixed designation D3325; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope D3327 Test Method for Analysis of Selected Elements in
Waterborne Oils (Withdrawn 1993)
1.1 This practice covers the preservation of waterborne oil
D3328 Test Methods for Comparison of Waterborne Petro-
samples from the time of collection to the time of analysis.
leum Oils by Gas Chromatography
Information is provided to ensure sample integrity and to avoid
D3414 Test Method for Comparison of Waterborne Petro-
contamination and to minimize microbial degradation.
leum Oils by Infrared Spectroscopy (Withdrawn 2018)
1.2 The practice is for controlled field or laboratory condi-
D3415 Practice for Identification of Waterborne Oils
tions and specifies thorough preparation of equipment and
D3650 Test Method for Comparison of Waterborne Petro-
precise operation.Where these details must be compromised in 3
leum Oils By Fluorescence Analysis (Withdrawn 2018)
a field emergency, nonstandard simplifications are recom-
D4489 Practices for Sampling of Waterborne Oils
mended that will minimize or eliminate consequent errors.
3. Terminology
NOTE 1—Procedures for the analysis of oil spill samples are Practices
D3326, D3415, and D4489, andTest Methods D3650, D3327, D3328, and
3.1 Definitions:
D3414. A guide to the use of ASTM test methods for the analysis of oil
3.1.1 For definitions of terms used in this standard, refer to
spill samples is found in Practice D3415.
Terminology D1129.
1.3 The values stated in SI units are to be regarded as
4. Summary of Practice
standard. No other units of measurement are included in this
standard.
4.1 Special types of sample containers and shipping con-
1.4 This standard does not purport to address all of the tainers are recommended. Samples may be of several types: tar
balls, collected oil, oil-water mixtures, emulsions, and oil and
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- water on collecting devices such as silanized glass cloth,
TFE-fluorocarbon polymer, or other materials. Instructions are
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use. given for the care of samples to minimize changes due to
1.5 This international standard was developed in accor- autoxidation and microbial attack between the time of sam-
dance with internationally recognized principles on standard- pling and the time of analysis. Services available for transpor-
ization established in the Decision on Principles for the tation of samples are described.
Development of International Standards, Guides and Recom-
5. Apparatus
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. 5.1 Sample Containers—Borosilicate glass containers that
have been thoroughly cleaned are preferable. All glass
2. Referenced Documents
containers, new or used, must be thoroughly cleaned and
2.1 ASTM Standards:
washed prior to use. The cleaning steps consist of an initial
D1129 Terminology Relating to Water
wash with a warm aqueous detergent mixture followed by six
D3326 Practice for Preparation of Samples for Identification
hot tap water rinses, two rinses with reagent water, a rinse with
of Waterborne Oils
reagent-grade acetone, and a final rinse with a solvent such as
pentane, hexane, cyclohexane, dichloromethane, or chloroform
followed by drying in a clean oven at 105°C or hotter for 30
This practice is under the jurisdiction of ASTM Committee D19 on Water and
is the direct responsibility of Subcommittee D19.06 on Methods for Analysis for
min. If the glassware requires cleaning under field conditions,
Organic Substances in Water.
it should be washed with warm aqueous detergent followed by
Current edition approved Jan. 1, 2020. Published January 2020. Originally
extensive water rinsing.Asolvent rinse with acetone should be
approved in 1974. Last previous edition approved in 2013 as D3325 – 90 (2013).
DOI: 10.1520/D3325-90R20. made, if possible, followed by lengthy air drying to remove
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
*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
D3325 − 90 (2020)
residual solvent. (Warning—For safety reasons, the use of 6.3 N-hexane, Mixed Hexanes, Cyclohexane, Pentane,
pentane, hexane, or cylcohexane is recommended over use of Dichloromethane, or Chloroform, spectroquality or equivalent
dichloromethane or carbon tetrachloride.) high purity.
NOTE 2—Hot reagent water rinses are advisable where hot tap water
7. Sampling
might reintroduce contamination.
7.1 Collect a representative sample in accordance with
5.1.1 Plastic containers are not acceptable since volatile
Practices D4489.
hydrocarbons diffuse readily through many commercial plastic
7.2 Sample containers should be carefully prepared as
containers or may be absorbed into the plastic. In addition, the
described in 5.1.
plasticizer may dissolve in the sample causing misleading
results. 8. Preservation of Samples
5.1.2 Metal containers usually should be avoided because
8.1 Protection Against Autoxidation—Treat the sample con-
the nickel and vanadium determinations could be invalidated
tainer to displace air and store in a dark area in a refrigerator.
by introduction of metal from the can.
Nitrogen or carbon dioxide can be used as inert gases to
5.1.3 When field expedients must be employed, an empty
displace air.
container of eac
...
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