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ASTM D2549-23

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Standard Test Method for Separation of Representative Aromatics and Nonaromatics Fractions of High-Boiling Oils by Elution Chromatography

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1.1 This test method covers the separation and determination of representative aromatics and nonaromatics fractions from hydrocarbon mixtures that boil between 232 °C and 538 °C (450 °F and 1000 °F). Alternative procedures are provided for the separation of 2 g or 10 g of hydrocarbon mixture.

Note 1: Some components may not be eluted from the chromatographic column for some types of samples under the conditions used in this method.

Note 2: Test Method D2007 is an alternative method of separating high-boiling oils into polar compounds, aromatics, and saturates fractions.

1.2 An alternative procedure is provided to handle samples boiling below 232 °C (450 °F), but whose 5 % point is above 178 °C (350 °F) as determined by Test Method D2887. This procedure is given in Appendix X1.

1.3 The values stated in acceptable SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.

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.

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.


5.1 The determination of compound types by mass spectrometry requires, in some instances, a preliminary separation of the petroleum sample into representative aromatics and nonaromatics fractions, as in Test Methods D2425, D2786, and D3239. This test method provides a suitable separation technique for this application.

SDO ASTM: ASTM International
Document Number D2549
Publication Date March 1, 2023
Language en - English
Page Count 6
Revision Level 23
Supercedes
Committee D02.04.0C
Publish Date Document Id Type View
March 1, 2023 D2549-23 Revision
April 10, 2002 D2549-02 Revision
Dec. 1, 2017 D2549-02R17 Reaffirmation
April 15, 2012 D2549-02R12 Reaffirmation
May 1, 2007 D2549-02R07 Reaffirmation
Jan. 1, 1995 D2549-91R95 Reaffirmation