• ASTM D2700-04

ASTM D2700-04

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

ASTM International, 05/01/2004

Publisher: ASTM

File Format: PDF

$50.00$101.00


Published:01/05/2004

Pages:64

File Size:1 file , 660 KB

Note:This product is unavailable in Russia, Ukraine, Belarus

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 except that this test method may not be applicable to fuel and fuel components that are primarily oxygenates. 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 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 Section 8, 13.4.1, 14.5.1, 15.6.1, Annex A1, A2.3.9, A2.4.8, A3.2.7.2(7), A4.2.3.1, A4.2.3.3(6) and (9), A4.3.5, X2.3.7, X3.2.3.1, X3.3.4.1, X3.3.9.3, X3.3.12.4, and X3.5.1.8.

More ASTM standard pdf

ASTM B694-86

ASTM B694-86

Standard Specification for COPPER, COPPER ALLOY, AND COPPER-CLAD STAINLESS STEEL SHEET AND STRIP FOR ELECTRICAL CABLE SHIELDING

$24.00 $49.20

ASTM D659-86e1

ASTM D659-86e1

Method of Evaluating Degree of Chalking of Exterior Paints

$107.00 $215.27

ASTM F791-96

ASTM F791-96

Standard Test Method for Stress Crazing of Transparent Plastics

$29.00 $58.00

ASTM 12-86

ASTM 12-86

Photographic Reference Standards to be used with ASTM D868

$118.00 $237.86