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ASTM D6890-03a

Historical Revision

Standard Test Method for Determination of Ignition Delay and Derived Cetane Number (DCN) of Diesel Fuel Oils by Combustion in a Constant Volume Chamber

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1.1 This automated laboratory test method covers the quantitative determination of the ignition characteristics of conventional diesel fuel oil, oil-sands based fuels, blends of fuel containing biodiesel material, diesel fuel oils containing cetane number improver additives, and is applicable to products typical of ASTM Specification D 975 grades No. 1-D and 2-D regular and low-sulfur diesel fuel oils, European standard EN 590, and Canadian standards CAN/CGSB-3.517 and 3.6-2000. The test method may also be applied to the quantitative determination of the ignition characteristics of diesel fuel blending components.

1.2 This test method measures the ignition delay and utilizes a constant volume combustion chamber with direct fuel injection into heated, compressed air. An equation converts an ignition delay determination to a derived cetane number (DCN).

1.3 This test method covers the ignition delay range from 3.6 to 5.0 milliseconds (55.3 to 40.5 DCN). The combustion analyzer can measure shorter and longer ignition delays but precision may be affected.

1.4 The values stated in SI units are to be regarded as the standard.

1.5 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 D6890
Publication Date July 10, 2003
Language en - English
Page Count 14
Revision Level 03a
Supercedes
Committee D02.01
Publish Date Document Id Type View
Nov. 15, 2022 D6890-22 Revision
July 1, 2021 D6890-21 Revision
Dec. 1, 2018 D6890-18 Revision
April 1, 2016 D6890-16E02 Revision
April 1, 2016 D6890-16E01 Revision
April 1, 2016 D6890-16 Revision
Dec. 1, 2015 D6890-15B Revision
Oct. 1, 2015 D6890-15A Revision
July 1, 2015 D6890-15 Revision
Oct. 1, 2013 D6890-13BE01 Revision
Oct. 1, 2013 D6890-13B Revision
May 1, 2013 D6890-13A Revision
March 1, 2013 D6890-13 Revision
Nov. 1, 2012 D6890-12A Revision
June 1, 2012 D6890-12 Revision
Dec. 1, 2011 D6890-11B Revision
Nov. 15, 2011 D6890-11A Revision
April 1, 2011 D6890-11 Revision
Aug. 1, 2010 D6890-10A Revision
July 1, 2010 D6890-10 Revision
April 15, 2009 D6890-09 Revision
June 1, 2008 D6890-08 Revision
Dec. 1, 2007 D6890-07B Revision
Feb. 15, 2007 D6890-07A Revision
Feb. 1, 2007 D6890-07 Revision
Aug. 1, 2006 D6890-06 Revision
April 1, 2004 D6890-04 Revision
July 10, 2003 D6890-03A Revision
June 10, 2003 D6890-03 Revision