ASTM-D909 › Historical Revision Information
Standard Test Method for Knock Characteristics of Aviation Gasolines by the Supercharge Method
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Scope
1.1 This test method covers the determination of the knock-limited power, under supercharge rich-mixture conditions, of fuels for use in spark-ignition reciprocating aircraft engines, in terms of ASTM supercharge octane or performance number. By operational considerations, this test method is restricted to testing fuels of 85 ASTM supercharge octane number and over.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information only.
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.
Significance and Use
Supercharge method ratings can provide an indication of the rich-mixture antiknock performance of aviation gasoline in aviation piston engines.
Supercharge method ratings are used by petroleum refiners and marketers and in commerce as a primary specification measurement to insure proper matching of fuel antiknock quality and engine requirement.
Supercharge method ratings may be used by aviation engine and aircraft manufacturers as a specification measurement related to matching of fuels and engines.
Keywords
ICS Number Code 75.160.20 (Liquid fuels)
To find similar documents by ASTM Volume:
05.05 (Combustion Characteristics; Manufactured Carbon and Graphite Products; Catalysts)
To find similar documents by classification:
75.160.20 (Liquid fuels Including gasoline, diesel, kerosene, etc.)
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Document Number
ASTM-D909-01e1
Revision Level
2001(E1) EDITION
Status
Superseded
Modification Type
Editorially changed
Publication Date
April 1, 2006
Document Type
Test Method
Page Count
83 pages
Committee Number
D02.01