ASTM-D2502 › Historical Revision Information
Standard Test Method for Estimation of Mean Relative Molecular Mass of Petroleum Oils from Viscosity Measurements
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Scope
1.1 This test method covers the estimation of the mean relative molecular mass of petroleum oils from kinematic viscosity measurements at 100 °F and 210 °F (37.78 °C and 98.89 °C).2 It is applicable to samples with mean relative molecular masses in the range from 250 to 700 and is intended for use with average petroleum fractions. It should not be applied indiscriminately to oils that represent extremes of composition or possess an exceptionally narrow mean relative molecular mass range.
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.
Significance and Use
4.1 This test method provides a means of calculating the mean relative molecular mass of petroleum oils from another physical measurement.
4.2 Mean relative molecular mass is a fundamental physical constant that can be used in conjunction with other physical properties to characterize hydrocarbon mixtures.
Keywords
kinematic viscosity; mean relative molecular mass; petroleum oils
To find similar documents by ASTM Volume:
05.01 (Petroleum Products and Lubricants (I): D56 - D3710)
To find similar documents by classification:
75.080 (Petroleum products in general)
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Document Number
ASTM-D2502-14
Revision Level
2014 R19 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
May 1, 2019
Document Type
Test Method
Page Count
4 pages
Committee Number
D02.04.0K