ASTM D2700-04e1

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
An American National Standard
e1
Designation: D 2700 – 04
Designation: 236/87
Standard Test Method for
1
Motor Octane Number of Spark-Ignition Engine Fuel
This standard is issued under the fixed designation D2700; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1
e NOTE—Corrected titles of 11.3 and 11.4 and kPa conversion errors in 18.1.1.6, Tables1, A6.9, and A6.10, and notes to
TablesA6.1–A6.6 editorially in October 2004.
1. Scope* 1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This laboratory test method covers the quantitative
responsibility of the user of this standard to establish appro-
determination of the knock rating of liquid spark-ignition
priate safety and health practices and determine the applica-
engine fuel in terms of Motor octane number except that this
bility of regulatory limitations prior to use. For more specific
testmethodmaynotbeapplicabletofuelandfuelcomponents
2 hazard statements, see Section 8, 13.4.1, 14.5.1, 15.6.1,Annex
that are primarily oxygenates. The sample fuel is tested in a
A1,A2.3.9,A2.4.8,A3.2.7.2(7),A4.2.3.1,A4.2.3.3(6) and (9),
standardized single cylinder, four-stroke cycle, variable com-
A4.3.5, X2.3.7, X3.2.3.1, X3.3.4.1, X3.3.9.3, X3.3.12.4, and
pression ratio, carbureted, CFR engine run in accordance with
X3.5.1.8.
a defined set of operating conditions.The octane number scale
is defined by the volumetric composition of primary reference
2. Referenced Documents
fuel blends. The sample fuel knock intensity is compared to
3
2.1 ASTM Standards:
that of one or more primary reference fuel blends. The octane
D1193 Specification for Reagent Water
number of the primary reference fuel blend that matches the
D1744 Test Method for Water in Liquid Petroleum Prod-
knockintensityofthesamplefuelestablishestheMotoroctane
4
ucts by Karl Fischer Reagent
number.
D2268 Test Method forAnalysis of High-Purity n-Heptane
1.2 Theoctanenumberscalecoverstherangefrom0to120
and Isooctane by Capillary Gas Chromatography
octane number, but this test method has a working range from
D2360 Test Method for Trace Impurities in Monocyclic
40 to 120 octane number. Typical commercial fuels produced
Aromatic Hydrocarbons by Gas Chromatography
for automotive spark-ignition engines rate in the 80 to 90
D2699 Test Method for Research Octane Number of
Motor octane number range. Typical commercial fuels pro-
Spark-Ignition Engine Fuel
duced for aviation spark-ignition engines rate in the 98 to 102
D2885 Test Method for Determination of Octane Number
Motor octane number range. Testing of gasoline blend stocks
of Spark-Ignition Engine Fuels by On-Line Direct Com-
orotherprocessstreammaterialscanproduceratingsatvarious
parison Technique
levels throughout the Motor octane number range.
D3703 Test Method for Peroxide Number of Aviation
1.3 The values of operating conditions are stated in SI units
Turbine Fuels
and are considered standard. The values in parentheses are the
D4057 Practice for Manual Sampling of Petroleum and
historical inch-pounds units. The standardized CFR engine
Petroleum Products
measurements continue to be in inch-pound units only because
D4175 Terminology Relating to Petroleum, Petroleum
oftheextensiveandexpensivetoolingthathasbeencreatedfor
Products, and Lubricants
this equipment.
D4177 Practice for Automatic Sampling of Petroleum and
Petroleum Products
1
This test method is under the jurisdiction of ASTM Committee D02 on
PetroleumProductsandLubricantsandisthedirectresponsibilityofSubcommittee
D02.01 on Combustion Characteristics.
3
Current edition approved May 1, 2004. Published June 2004. Originally For referenced ASTM standards, visit the ASTM website, www.astm.org, or
approved in 1968. Last previous edition approved in 2003 as D2700–03b. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
2
Research octane number, determined using Test Method D2699, is a compan- Standards volume information, refer to the standard’s Document Summary page on
ion method to provide a similar but typically higher octane rating under milder the ASTM website.
4
operating conditions. Withdrawn.
*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 ----------------------
e1
D2700–04
D4814 SpecificationforAutomotiveSpark-IgnitionEngine 3.1.7 digital counter reading, n—for
...