ASTM D613-17a
(Test Method)Standard Test Method for Cetane Number of Diesel Fuel Oil
Standard Test Method for Cetane Number of Diesel Fuel Oil
SIGNIFICANCE AND USE
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.
SCOPE
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 and health 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.
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Designation: D613 − 17a
Designation: 41/2000
Standard Test Method for
1
Cetane Number of Diesel Fuel Oil
This standard is issued under the fixed designation D613; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* D1193 Specification for Reagent Water
D2500 Test Method for Cloud Point of Petroleum Products
1.1 This test method covers the determination of the rating
and Liquid Fuels
of diesel fuel oil in terms of an arbitrary scale of cetane
D3703 Test Method for Hydroperoxide Number of Aviation
numbers using a standard single cylinder, four-stroke cycle,
Turbine Fuels, Gasoline and Diesel Fuels
variable compression ratio, indirect injected diesel engine.
D4057 Practice for Manual Sampling of Petroleum and
1.2 The cetane number scale covers the range from zero (0)
Petroleum Products
to 100, but typical testing is in the range of 30 to 65 cetane
D4175 Terminology Relating to Petroleum Products, Liquid
number.
Fuels, and Lubricants
1.3 ThevaluesforoperatingconditionsarestatedinSIunits
D4177 Practice for Automatic Sampling of Petroleum and
and are to be regarded as the standard. The values given in
Petroleum Products
parentheses are the historical inch-pound units for information
D6299 Practice for Applying Statistical Quality Assurance
only. In addition, the engine measurements continue to be in
and Control Charting Techniques to Evaluate Analytical
inch-pound units because of the extensive and expensive
Measurement System Performance
tooling that has been created for these units.
E456 Terminology Relating to Quality and Statistics
1.4 This standard does not purport to address all of the
E542 Practice for Calibration of Laboratory Volumetric
safety concerns, if any, associated with its use. It is the
Apparatus
responsibility of the user of this standard to establish appro-
E832 Specification for Laboratory Filter Papers
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For more specific
3. Terminology
warning statements, see Annex A1.
3.1 Definitions:
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.1.1 acceptedreferencevalue(ARV),n—avaluethatserves
ization established in the Decision on Principles for the
as an agreed-upon reference for comparison, and which is
Development of International Standards, Guides and Recom-
derived as: (1) a theoretical or established value, based on
mendations issued by the World Trade Organization Technical
scientific principles, or (2) an assigned or certified value, based
Barriers to Trade (TBT) Committee.
on experimental work of some national or international
organization, or (3) a consensus or certified value, based on
2. Referenced Documents
collaborative experimental work under the auspices of a
2
2.1 ASTM Standards:
scientific or engineering group. E456
D975 Specification for Diesel Fuel Oils
3.1.1.1 Discussion—In the context of this test method,
accepted reference value is understood to apply to the cetane
1
This test method is under the jurisdiction of ASTM Committee D02 on
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
Subcommittee D02.01 on Combustion Characteristics.
Current edition approved May 1, 2017. Published May 2017. Originally
approved in 1941. Last previous edition approved in 2017 as D613 – 17. DOI:
10.1520/D0613-17A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D613 − 17a
number of specific reference materials determined empirically reference value determined in accordance with Practice D6299
under reproducibility conditions by the National Exchange requirements for check standards derived from interlaboratory
Group or another recognized exchange testing organization. exchange programs.
3.1.2 cetane number (CN), n—a measure of the ignition
3.2.2.1 Discussion—When evaluating the interlaboratory
performance of a diesel fuel oil obtained by comparing it to
data to establish the ARV, outlier identification and rejection
reference fuels in a standardized engine test. D4175
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D613 − 17 D613 − 17a
Designation: 41/2000
Standard Test Method for
1
Cetane Number of Diesel Fuel Oil
This standard is issued under the fixed designation D613; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
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 and health 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D975 Specification for Diesel Fuel Oils
D1193 Specification for Reagent Water
D2500 Test Method for Cloud Point of Petroleum Products and Liquid Fuels
D3703 Test Method for Hydroperoxide Number of Aviation Turbine Fuels, Gasoline and Diesel Fuels
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products
D6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measure-
ment System Performance
E456 Terminology Relating to Quality and Statistics
E542 Practice for Calibration of Laboratory Volumetric Apparatus
E832 Specification for Laboratory Filter Papers
3. Terminology
3.1 Definitions:
3.1.1 accepted reference value (ARV), n—a value that serves as an agreed-upon reference for comparison, and which is derived
as: (1) a theoretical or established value, based on scientific principles, or (2) an assigned or certified value, based on experimental
1
This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.01 on Combustion Characteristics.
Current edition approved March 1, 2017May 1, 2017. Published May 2017. Originally approved in 1941. Last previous edition approved in 20162017 as D613 – 16a.17.
DOI: 10.1520/D0613-17.10.1520/D0613-17A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D613 − 17a
work of some national or international organization, or (3) a consensus or certified value, based on collaborative experimental work
under the auspices of a scientific or engineering group. E456
3.1.1.1 Discussion—
In the context of this test method, accepted reference value is understood to apply to the cetane number of specific reference
materials determined empirically under reproducibility conditions by the National Exchange Group or another recognized
exchange testing organization.
3.1.2 cetane number (CN), n—a measure of the ignition performance of a diesel fuel oil obta
...
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