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ASTM D 2700 : 2018

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel
Available format(s)

Hardcopy , PDF

Superseded date

21-01-2019

Language(s)

English

Published date

01-04-2018

1.1This laboratory test method covers the quantitative determination of the knock rating of liquid spark-ignition engine fuel in terms of Motor octane number, including fuels that contain up to 25 % v/v of ethanol. However, this test method may not be applicable to fuel and fuel components that are primarily oxygenates.2 The sample fuel is tested in a standardized single cylinder, four-stroke cycle, variable compression ratio, carbureted, CFR engine run in accordance with a defined set of operating conditions. The octane number scale is defined by the volumetric composition of primary reference fuel blends. The sample fuel knock intensity is compared to that of one or more primary reference fuel blends. The octane number of the primary reference fuel blend that matches the knock intensity of the sample fuel establishes the Motor octane number.

1.2The octane number scale covers the range from 0 to 120 octane number, but this test method has a working range from 40 to 120 octane number. Typical commercial fuels produced for automotive spark-ignition engines rate in the 80 to 90 Motor octane number range. Typical commercial fuels produced for aviation spark-ignition engines rate in the 98 to 102 Motor octane number range. Testing of gasoline blend stocks or other process stream materials can produce ratings at various levels throughout the Motor octane number range.

1.3The values of operating conditions are stated in SI units and are considered standard. The values in parentheses are the historical inch-pounds units. The standardized CFR engine measurements continue to be in inch-pound units only because of the extensive and expensive tooling that has been created for this equipment.

1.4This 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 hazard statements, see Section 8, 14.4.1, 15.5.1, 16.6.1, Annex A1, A2.2.3.1, A2.2.3.3(6) and (9), A2.3.5, X3.3.7, X4.2.3.1, X4.3.4.1, X4.3.9.3, X4.3.12.4, and X4.5.1.8.

1.5This 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.

Committee
D 02
DocumentType
Test Method
Pages
59
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ASTM D 6227 : 2018 Standard Specification for Unleaded Aviation Gasoline Containing a Non-hydrocarbon Component
ASTM D 4858 : 2013 Standard Test Method for Determination of the Tendency of Lubricants to Promote Preignition in Two-Stroke-Cycle Gasoline Engines (Withdrawn 2022)
ASTM D 8076 : 2018 Standard Specification for 100 Research Octane Number Test Fuel for Automotive Spark-Ignition Engines
ASTM D 7960 : 2018 Standard Specification for Unleaded Aviation Gasoline Test Fuel Containing Non-hydrocarbon Components
ASTM D 1310 : 2014 Standard Test Method for Flash Point and Fire Point of Liquids by Tag Open-Cup Apparatus
ASTM D 7547 : 2018 : REV A Standard Specification for Hydrocarbon Unleaded Aviation Gasoline
ASTM D 8111 : 2019 Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence IIIH, Spark-Ignition Engine
ASTM D 6812 : 2004 : REV A : R2019 Standard Practice for Ground-Based Octane Rating Procedures for Turbocharged/Supercharged Spark Ignition Aircraft Engines
ASTM D 2699 : 2019 Standard Test Method for Research Octane Number of Spark-Ignition Engine Fuel
ASTM D 4863 : 2013 Standard Test Method for Determination of Lubricity of Two-Stroke-Cycle Gasoline Engine Lubricants (Withdrawn 2022)
ASTM D 7826 : 2019 Standard Guide for Evaluation of New Aviation Gasolines and New Aviation Gasoline Additives
ASTM D 6709 : 2015 : REV A Standard Test Method for Evaluation of Automotive Engine Oils in the Sequence VIII Spark-Ignition Engine (CLR Oil Test Engine)
ASTM D 910 : 2017 : REV A Standard Specification for Leaded Aviation Gasolines
ASTM D 2885 : 2019 : REV A Standard Test Method for Determination of Octane Number of Spark-Ignition Engine Fuels by On-Line Direct Comparison Technique
ASTM D 6424 : 2004 : REV A : R2019 Standard Practice for Octane Rating Naturally Aspirated Spark Ignition Aircraft Engines
ASTM D 1094 : 2007 : R2019 Standard Test Method for Water Reaction of Aviation Fuels
ASTM D 7719 : 2018 Standard Specification for High Aromatic Content Unleaded Hydrocarbon Aviation Gasoline
ASTM D 4814 : 2019 Standard Specification for Automotive Spark-Ignition Engine Fuel

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$191.52
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