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ASTM D613-24

Current Revision

Standard Test Method for Cetane Number of Diesel Fuel Oil

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1.1 This test method covers the determination of the rating of diesel fuel oil in terms of an arbitrary scale of cetane numbers using a standard single cylinder, four-stroke cycle, variable compression ratio, indirect injected diesel engine.

1.2 The cetane number scale covers the range from zero (0) to 100, but typical testing is in the range of 30 to 65 cetane number.

1.3 The values for operating conditions are stated in SI units and are to be regarded as the standard. The values given in parentheses are the historical inch-pound units for information only. In addition, the engine measurements continue to be in inch-pound units because of the extensive and expensive tooling that has been created for these units.

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. For more specific warning statements, see Annex A1.

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 cetane number provides a measure of the ignition characteristics of diesel fuel oil in compression ignition engines.

5.2 This test method is used by engine manufacturers, petroleum refiners and marketers, and in commerce as a primary specification measurement related to matching of fuels and engines.

5.3 Cetane number is determined at constant speed in a precombustion chamber type compression ignition test engine. The relationship of test engine performance to full scale, variable speed, variable load engines is not completely understood.

5.4 This test method may be used for unconventional fuels such as synthetics, vegetable oils, and the like. However, the relationship to the performance of such materials in full scale engines is not completely understood.

SDO ASTM: ASTM International
Document Number D613
Publication Date Feb. 1, 2024
Language en - English
Page Count 18
Revision Level 24
Supercedes
Committee D02.01
Publish Date Document Id Type View
Feb. 1, 2024 D0613-24 Revision
March 1, 2023 D0613-23 Revision
Dec. 1, 2018 D0613-18AE01 Revision
Dec. 1, 2018 D0613-18A Revision
April 1, 2018 D0613-18 Revision
Dec. 1, 2017 D0613-17CE01 Revision
Dec. 1, 2017 D0613-17C Revision
June 1, 2017 D0613-17B Revision
May 1, 2017 D0613-17AE01 Revision
May 1, 2017 D0613-17A Revision
March 1, 2017 D0613-17 Revision
Oct. 1, 2016 D0613-16A Revision
June 1, 2016 D0613-16E01 Revision
June 1, 2016 D0613-16 Revision
April 1, 2015 D0613-15AE01 Revision
April 1, 2015 D0613-15A Revision
Feb. 1, 2015 D0613-15 Revision
Oct. 1, 2014 D0613-14 Revision
Dec. 1, 2013 D0613-13 Revision
Oct. 1, 2010 D0613-10AE01 Revision
Oct. 1, 2010 D0613-10A Revision
March 1, 2010 D0613-10 Revision
Sept. 1, 2008 D0613-08 Revision
May 1, 2005 D0613-05 Revision
June 10, 2003 D0613-03B Revision
May 10, 2003 D0613-03A Revision
Feb. 10, 2003 D0613-03 Revision
Sept. 10, 2001 D0613-95 Revision
Sept. 10, 2001 D0613-01 Revision