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ASTM D7061-05

Historical Revision

Standard Test Method for Measuring n-Heptane Induced Phase Separation of Asphaltene-Containing Heavy Fuel Oils as Separability Number by an Optical Scanning Device

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1.1 This test method covers the quantitative measurement, either in the laboratory or in the field, of how easily asphaltene-containing heavy fuel oils diluted in toluene phase separate upon addition of heptane. This is measured as a separability number (%) by the use of an optical scanning device.

1.2 The test method is limited to asphaltene-containing heavy fuel oils. ASTM specification fuels that generally fall within the scope of this test method are Specification D 396, Grade Nos. 4, 5, and 6, Specification D 975, Grade No. 4-D, and Specification D 2880, Grade Nos. 3-GT and 4-GT. Refinery fractions from which such blended fuels are made also fall within the scope of this test method.

1.3 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number D7061
Publication Date Feb. 1, 2005
Language en - English
Page Count 5
Revision Level 05
Supercedes
Committee D02.14
Publish Date Document Id Type View
Dec. 1, 2023 D7061-23 Revision
Dec. 1, 2019 D7061-19E01 Revision
Dec. 1, 2019 D7061-19 Revision
Dec. 1, 2017 D7061-17 Revision
Nov. 1, 2012 D7061-12 Revision
May 1, 2006 D7061-06 Revision
April 1, 2005 D7061-05A Revision
Feb. 1, 2005 D7061-05 Revision
June 1, 2004 D7061-04 Revision