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ASTM D2425-04

Historical Revision

Standard Test Method for Hydrocarbon Types in Middle Distillates by Mass Spectrometry

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1.1 This test method covers an analytical scheme using the mass spectrometer to determine the hydrocarbon types present in virgin middle distillates 204 to 343C (400 to 650F) boiling range, 5 to 95 volume % as determined by Test Method D 86. Samples with average carbon number value of paraffins between C12 and C16 and containing paraffins from C10 and C 18 can be analyzed. Eleven hydrocarbon types are determined. These include: paraffins, noncondensed cycloparaffins, condensed dicycloparaffins, condensed tricycloparaffins, alkylbenzenes, indans or tetralins, or both, CnH2n-10(indenes, etc.), naphthalenes, C nH2n-14(acenaphthenes, etc.), CnH2n-16(acenaphthylenes, etc.), and tricyclic aromatics. Note 1This test method was developed on consolidated Electro-dynamics Corp. Type 103 Mass Spectrometers.

1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.

This standard does not purport to address all of the safety problems, 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 a specific hazard statement, see .


A knowledge of the hydrocarbon composition of process streams and petroleum products boiling within the range of 400 to 650°F (204 to 343°C) is useful in following the effect of changes in process variables, diagnosing the source of plant upsets, and in evaluating the effect of changes in composition on product performance properties.

SDO ASTM: ASTM International
Document Number D2425
Publication Date Nov. 1, 2004
Language en - English
Page Count 6
Revision Level 04
Supercedes
Committee D02.04.0M
Publish Date Document Id Type View
Dec. 1, 2023 D2425-23 Revision
June 1, 2021 D2425-21 Revision
Jan. 15, 2019 D2425-19 Revision
Oct. 1, 2017 D2425-17 Revision
Nov. 1, 2004 D2425-04 Revision
April 10, 1999 D2425-99 Revision
Oct. 1, 2009 D2425-04R09 Reaffirmation