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Significance and Use
5.1 Density is a fundamental physical property that can be used in conjunction with other properties to characterize both the light and heavy fractions of petroleum and to access the quality of crude oils.
5.2 Determination of the density or relative density of petroleum and its products is necessary for the conversion of measured volumes to volumes at the standard temperatures of 15 °C.
5.3 The determination of densities at the elevated temperatures of 40 °C and 100 °C is particularly useful in providing the data needed for the conversion of kinematic viscosities in centistokes (mm2/s) to the corresponding dynamic viscosities in centipoises (mPa·s).
1.1 This test method covers the determination of the density of oils more viscous than 15 mm2/s (cSt) at 20 °C, and of viscous oils and melted waxes at elevated temperatures, but not at temperatures at which the sample would have a vapor pressure of 13.3 kPa (100 mmHg) or above.
Note 1: To determine the densities of less viscous liquids at 20 °C or 25 °C use Test Method .
1.2 This test method provides a calculation procedure for converting density to relative density (specific gravity).
1.3 WARNING—Mercury has been designated by many regulatory agencies as a hazardous material that can cause central nervous system, kidney and liver damage. Mercury, or its vapor, may be hazardous to health and corrosive to materials. Caution should be taken when handling mercury and mercury containing products. See the applicable product Safety Data Sheet (SDS) for details and EPA’s website—http://www.epa.gov/mercury/faq.htm—for additional information. Users should be aware that selling mercury and/or mercury containing products into your state or country may be prohibited by law.
1.4 The values stated in SI units are to be regarded as standard.
1.4.1 Exception—Other units of measurement are included in this standard for information only.
1.5 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.
1.6 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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
ICS Number Code 17.060 (Measurement of volume, mass, density, viscosity)
UNSPSC Code 15101500(Petroleum and distillates); 41103316(Pycnometers)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM D1481-17, Standard Test Method for Density and Relative Density (Specific Gravity) of Viscous Materials by Lipkin Bicapillary Pycnometer, ASTM International, West Conshohocken, PA, 2017, www.astm.orgBack to Top