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ASTM D2699-15a
Standard Test Method for Research Octane Number of Spark-Ignition Engine Fuel (Includes all amendments And changes 1/18/2017).
Automaticky přeložený název:
Standardní zkušební metoda pro oktanové číslo výzkumnou metodou ze zážehového motoru Palivo
NORMA vydána dne 1.10.2015
Informace o normě:
Označení normy: ASTM D2699-15a
Poznámka: NEPLATNÁ
Datum vydání normy: 1.10.2015
Kód zboží: NS-619460
Počet stran: 47
Přibližná hmotnost: 141 g (0.31 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Kategorie - podobné normy:
Anotace textu normy ASTM D2699-15a :
Keywords:
guide table, isooctane, knock intensity, n-heptane, research octane number, spark-ignition engine fuel performance, toluene standardization fuel,, ICS Number Code 75.160.20 (Liquid fuels)
Doplňující informace
| Significance and Use | ||||||||||||||||||||||||||||||||||||
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5.1 Research O.N. correlates with commercial automotive spark-ignition engine antiknock performance under mild conditions of operation. 5.2 Research O.N. is used by engine manufacturers, petroleum refiners and marketers, and in commerce as a primary specification measurement related to the matching of fuels and engines. 5.2.1 Empirical correlations that permit
calculation of automotive antiknock performance are based on the
general equation: Values of k1, k2, and k3 vary with vehicles and vehicle populations and are based on road-O.N. determinations. 5.2.2 Research O.N., in conjunction with
Motor O.N., defines the antiknock index of automotive
spark-ignition engine fuels, in accordance with Specification
D4814. The antiknock index of
a fuel approximates the Road octane ratings for many vehicles, is
posted on retail dispensing pumps in the U.S., and is referred to
in vehicle manuals. This is more commonly presented as: 5.2.3 Research O.N. is also used either alone or in conjunction with other factors to define the Road O.N. capabilities of spark-ignition engine fuels for vehicles operating in areas of the world other than the United States. 5.3 Research O.N. is used for measuring the antiknock performance of spark-ignition engine fuels that contain oxygenates. 5.4 Research O.N. is important in relation to the specifications for spark-ignition engine fuels used in stationary and other nonautomotive engine applications. |
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| 1. Scope | ||||||||||||||||||||||||||||||||||||
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1.1 This laboratory test method covers the quantitative determination of the knock rating of liquid spark-ignition engine fuel in terms of Research O.N., 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.1.2 The O.N. scale covers the range from 0 to 120 octane number but this test method has a working range from 40 to 120 Research O.N. Typical commercial fuels produced for spark-ignition engines rate in the 88 to 101 Research O.N. range. Testing of gasoline blend stocks or other process stream materials can produce ratings at various levels throughout the Research O.N. range. 1.3 The values of operating conditions are stated in SI units and are considered standard. The values in parentheses are the historical inch-pound 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. 1.4 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 specific warning statements, see Section
8, 14.4.1, 15.5.1, 16.6.1, Annex A1, A2.2.3.1, A2.2.3.3 (
Terminology Relating to Thermometry and
Hydrometry (Includes all amendments and changes 4/21/2026). Standard Test Method for Determination of
Water in Petroleum Products, Lubricating Oils, and Additives by
Coulometric Karl Fischer Titration Standard Practice for Applying
Statistical Quality Assurance and Control Charting Techniques to
Evaluate Analytical Measurement System Performance (Includes all
amendments and changes 8/4/2026). Standard Practice for Sampling and
Handling of Fuels for Volatility Measurement Standard Specification for Automotive
Spark-Ignition Engine Fuel Standard Practice for Automatic Sampling
of Petroleum and Petroleum Products (Includes all amendments and
changes 3/24/2023). Standard Terminology Relating to
Petroleum Products, Liquid Fuels, and Lubricants (Includes all
amendments and changes 6/9/2026). Standard Terminology Relating to Quality
and Statistics (Includes all amendments and changes 4/16/2024). C-39.1 Requirements for Electrical Analog
Indicating Instruments Standard Test Method for Water in Organic
Liquids by Coulometric Karl Fischer Titration Standard Practice for Gravimetric
Calibration of Laboratory Volumetric Instruments Standard Test Method for Analysis of
High-Purity n-Heptane and Isooctane by Capillary Gas
Chromatography Standard Specification for Reagent
Water Standard Practice for Manual Sampling of
Petroleum and Petroleum Products Standard Test Method for Hydroperoxide
Number of Aviation Turbine Fuels, Gasoline and Diesel Fuels Standard Test Method for Determination of
Octane Number of Spark-Ignition Engine Fuels by On-Line Direct
Comparison Technique (Includes all amendments and changes
3/27/2026). Standard Test Method for Trace Impurities
in Monocyclic Aromatic Hydrocarbons by Gas Chromatography
(Withdrawn 2016) Standard Test Method for Motor Octane
Number of Spark-Ignition Engine Fuel (Includes all amendments and
changes 7/13/2026). |
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