ASTM D5002-13

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Designation: D5002 − 99 (Reapproved 2010) D5002 − 13
Standard Test Method for
Density and Relative Density of Crude Oils by Digital
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Density Analyzer
This standard is issued under the fixed designation D5002; 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 Scope*
1.1 This test method covers the determination of the density or relative density of crude oils that can be handled in a normal
fashion as liquids at test temperatures between 15 and 35°C. This test method applies to crude oils with high vapor pressures
provided appropriate precautions are taken to prevent vapor loss during transfer of the sample to the density analyzer.
1.2 This test method was evaluated in round robin testing using crude oils in the 0.75 to 0.95 g/mL range. Lighter crude oil can
require special handling to prevent vapor losses. Heavier crudes can require measurements at higher temperatures to eliminate air
bubbles in the sample.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
The accepted units of measurement of density are grams per millilitre and kilograms per cubic metre.
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. Specific warning statements are given in 7.4, 7.5, and 7.6.
2. Referenced Documents
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2.1 ASTM Standards:
D941 Test Method for Density and Relative Density (Specific Gravity) of Liquids by Lipkin Bicapillary Pycnometer (Withdrawn
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1993)
D1193 Specification for Reagent Water
D1217 Test Method for Density and Relative Density (Specific Gravity) of Liquids by Bingham Pycnometer
D1250 Guide for Use of the Petroleum Measurement Tables
D4052 Test Method for Density, Relative Density, and API Gravity of Liquids by Digital Density Meter
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
D4377 Test Method for Water in Crude Oils by Potentiometric Karl Fischer Titration
3. Terminology
3.1 Definitions:
3.1.1 density—mass per unit volume at a specified temperature.
3.1.2 relative density—the ratio of the density of a material at a stated temperature to the density of water at a stated temperature.
4. Summary of Test Method
4.1 Approximately 0.7 mL 1 mL to 2 mL of crude oil sample is introduced into an oscillating sample tube and the change in
oscillating frequency caused by the change in the mass of the tube is used in conjunction with calibration data to determine the
density of the sample.
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This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.04.0D on Physical and Chemical Methods.
Current edition approved Sept. 15, 2010Oct. 1, 2013. Published November 2010October 2013. Originally approved in 1989. Last previous edition approved in 20052010
as D5002–99(2005).D5002 – 99 (2010). DOI: 10.1520/D5002-99R10.10.1520/D5002-13.
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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 ASTM website.
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The last approved version of this historical standard is referenced on www.astm.org.
*A Summary of Changes section appears at the end of this standard
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D5002 − 13
5. Significance and Use
5.1 Density is a fundamental physical property that can be used in conjunction with other properties to characterize the quality
of crude oils.
5.2 The density or relative density of crude oils is used for the conversion of measured volumes to volumes at the standard
temperatures of 15°C or 60°F and for the conversion of crude mass measurements into volume units.
5.3 The application of the density result obtained from this test method, for fiscal or custody transfer accounting calculations,
can re
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