Std

ASTM D2700-22b

Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

standard by ASTM International, 12/15/2022

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Full Description

1.1 This 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.
1.2 The 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.
1.3 The 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.
1.4 For purposes of determining conformance with all specified limits in this standard, an observed value or a calculated value shall be rounded "to the nearest unit" in the last right-hand digit used in expressing the specified limit, in accordance with the rounding method of Practice E29.
1.5 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, 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.
1.6 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.
 

Product Details

Published:
12/15/2022
Number of Pages:
59
File Size:
1 file , 1 MB
Redline File Size:
2 files , 2.5 MB
Note:
This product is unavailable in Russia, Ukraine, Belarus
 

Document History

  1. ASTM D2700-23


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  2. ASTM D2700-22b

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    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  3. ASTM D2700-22a


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

    • Historical Version

  4. ASTM D2700-22


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

    • Historical Version

  5. ASTM D2700-21


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

    • Historical Version

  6. ASTM D2700-19e1


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

    • Historical Version

  7. ASTM D2700-19


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

    • Historical Version

  8. ASTM D2700-18a


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

    • Historical Version

  9. ASTM D2700-18


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  10. ASTM D2700-17a


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

    • Historical Version

  11. ASTM D2700-17


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  12. ASTM D2700-16a


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  13. ASTM D2700-16


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  14. ASTM D2700-14


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  15. ASTM D2700-13b


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  16. ASTM D2700-13a


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  17. ASTM D2700-13


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  18. ASTM D2700-12a


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  19. ASTM D2700-12


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  20. ASTM D2700-11e1


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  21. ASTM D2700-11


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  22. ASTM D2700-10


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  23. ASTM D2700-09e1


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  24. ASTM D2700-09


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  25. ASTM D2700-08


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  26. ASTM D2700-07b


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  27. ASTM D2700-07a


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  28. ASTM D2700-07


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  29. ASTM D2700-06


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  30. ASTM D2700-04a


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  31. ASTM D2700-04e1


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  32. ASTM D2700-04


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  33. ASTM D2700-03b


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  34. ASTM D2700-03a


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  35. ASTM D2700-03


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  36. ASTM D2700-02


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  37. ASTM D2700-01a


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  38. ASTM D2700-01


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

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  39. ASTM D2700-99


    Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel

    • Historical Version