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ASTM D4746-20

Current Revision

Standard Test Method for Determination of Quinoline Insolubles (QI) in Tar and Pitch by Pressure Filtration

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1.1 This test method covers the determination of the quinoline-insoluble matter (QI) in tar and pitch by pressure filtration and gives results comparable to those obtained by Test Method D2318.

1.2 Since this test method is empirical, strict adherence to all details of the procedure is necessary.

1.3 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.

1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazards are given in Section 7, 6.2, and 6.3.

1.5 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.


4.1 This test method is useful in evaluating and characterizing tar and pitch and as one element in establishing the uniformity of shipments and sources of supply.

SDO ASTM: ASTM International
Document Number D4746
Publication Date June 1, 2020
Language en - English
Page Count 6
Revision Level 20
Supercedes
Committee D02.05
Publish Date Document Id Type View
June 1, 2020 D4746-20 Revision
May 1, 2014 D4746-14E01 Revision
May 1, 2014 D4746-14 Revision
Dec. 10, 1998 D4746-98 Revision
July 15, 2013 D4746-98R13 Reaffirmation
Oct. 15, 2008 D4746-98R08 Reaffirmation
Nov. 1, 2003 D4746-98R03E01 Reaffirmation