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ASTM D287-92(2006)

Historical Reaffirmation

Standard Test Method for API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)

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1.1 This test method covers the determination by means of a glass hydrometer of the API gravity of crude petroleum and petroleum products normally handled as liquids and having a Reid vapor pressure (Test Method D 323) of 26 psi (180 kPa) or less. Gravities are determined at 60ˌF (15.56°C), or converted to values at 60F, by means of standard tables. These tables are not applicable to nonhydrocarbons or essentially pure hydrocarbons such as the aromatics.

Note 1—The international version of this test method is described in Test Method D 1298.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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. For specific hazard statements, see 8.3.


Accurate determination of the gravity of petroleum and its products is necessary for the conversion of measured volumes to volumes at the standard temperature of 60°F (15.56°C).

Gravity is a factor governing the quality of crude oils. However, the gravity of a petroleum product is an uncertain indication of its quality. Correlated with other properties, gravity can be used to give approximate hydrocarbon composition and heat of combustion.

SDO ASTM: ASTM International
Document Number D287
Publication Date May 1, 2006
Language en - English
Page Count 3
Revision Level 92(2006)
Supercedes
Committee D02.02
Publish Date Document Id Type View
Dec. 1, 2022 D0287-22 Revision
June 1, 2012 D0287-12B Revision
May 15, 2012 D0287-12A Revision
April 1, 2012 D0287-12 Revision
April 10, 2000 D0287-92R00E01 Revision
Not Available D0287-92 Revision
Dec. 1, 2019 D0287-12BR19 Reaffirmation
May 1, 2006 D0287-92R06 Reaffirmation