ASTM D613-01
(Test Method)Standard Test Method for Cetane Number of Diesel Fuel Oil
Standard Test Method for Cetane Number of Diesel Fuel Oil
SCOPE
1.1 This test method determines 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 considered standard. The values in parentheses are the historical inch-pounds units. In addition, the engine measurements continue to be in inch-pounds 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 hazard statements, see .
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
Designation: D 613 – 01
Designation: 41/2000
Standard Test Method for
1
Cetane Number of Diesel Fuel Oil
This standard is issued under the fixed designation D 613; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope E 542 Practice for Calibration of Laboratory Volumetric
7
Apparatus
1.1 This test method determines the rating of diesel fuel oil
7
E 832 Specification for Laboratory Filter Papers
in terms of an arbitrary scale of cetane numbers using a
standard single cylinder, four-stroke cycle, variable compres-
3. Terminology
sion ratio, indirect injected diesel engine.
3.1 Definitions:
1.2 The cetane number scale covers the range from zero (0)
3.1.1 accepted reference value (ARV), n—a value that
to 100 but typical testing is in the range of 30 to 65 cetane
serves as an agreed-upon reference for comparison, and which
number.
is derived as: (1) a theoretical or established value, based on
1.3 The values for operating conditions are stated in SI units
scientific principles, or (2) an assigned or certified value, based
and are considered standard. The values in parentheses are the
on experimental work of some national or international orga-
historical inch-pounds units. In addition, the engine measure-
nization, or (3) a consensus or certified value, based on
ments continue to be in inch-pounds units because of the
collaborative experimental work under the auspices of a
extensive and expensive tooling that has been created for these
scientific or engineering group. E 456
units.
3.1.1.1 Discussion—In the context of this test method,
1.4 This standard does not purport to address all of the
accepted reference value is understood to apply to the cetane
safety concerns, if any, associated with its use. It is the
number of specific reference materials determined empirically
responsibility of the user of this standard to establish appro-
under reproducibility conditions by the National Exchange
priate safety and health practices and determine the applica-
Group or another recognized exchange testing organization.
bility of regulatory limitations prior to use. For more specific
3.1.2 cetane number, n—a measure of the ignition perfor-
hazard statements, see Annex A1.
mance of a diesel fuel oil obtained by comparing it to reference
2. Referenced Documents fuels in a standardized engine test. D 4175
3.1.2.1 Discussion—In the context of this test method,
2.1 ASTM Standards:
2
ignition performance is understood to mean the ignition delay
D 975 Specification for Diesel Fuel Oils
3
of the fuel as determined in a standard test engine under
D 1193 Specification for Reagent Water
2
controlled conditions of fuel flow rate, injection timing and
D 2500 Test Method for Cloud Point of Petroleum Oils
compression ratio.
D 4057 Practice for Manual Sampling of Petroleum and
4
3.1.3 compression ratio, n—the ratio of the volume of the
Petroleum Products
combustion chamber including the precombustion chamber
D 4175 Terminology Relating to Petroleum, Petroleum
4
with the piston at bottom dead center to the comparable volume
Products, and Lubricants
5 with the piston at top dead center.
E 1 Specification for ASTM Thermometers
6
3.1.4 ignition delay, n—that period of time, expressed in
E 456 Terminology Relating to Quality and Statistics
degrees of crank angle rotation, between the start of fuel
injection and the start of combustion.
3.1.5 injection timing (injection advance), n—that time in
1
This test method is under the jurisdiction of ASTM Committee D02 on
the combustion cycle, measured in degrees of crank angle, at
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
which fuel injection into the combustion chamber is initiated.
D02.01 on Combustion Characteristics.
Current edition approved Sept. 10, 2001. Published October 2001. Originally
3.1.6 repeatability conditions, n—conditions where inde-
published as D 613 – 41. Last previous edition D 613 – 95.
pendent test results are obtained with the same method on
2
Annual Book of ASTM Standards, Vol 05.01.
3
Annual Book of ASTM Standards, Vol 11.01.
4
Annual Book of ASTM Standards, Vol 05.02.
5
Annual Book of ASTM Standards, Vol 14.03.
6 7
Annual Book of ASTM Standards, Vol 14.02. Annual Book of ASTM Standards, Vol 14.04.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.