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RS ASTM D2699-21
Standard test method for research octane number of spark— ignition engine fuel
Abstract

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.2 The sample fuel is tested using a standardized single
cylinder, four-stroke cycle, variable compression ratio, carbureted, CFR engine run in accordance with a defined set of
operating conditions. The O.N. scale is defined by the volumetric composition of PRF blends. The sample fuel knock intensity
is compared to that of one or more PRF blends. The O.N. of the PRF blend that matches the K.I. of the sample fuel establishes
the Research O.N.

General Information

CodeClassificationThemePagesPublisherAvailability
RS ASTM D2699-21ADOPTED ASTM STANDARDSPetroleum and related technologies48Eight Edition
Apr 2020		Available
Price: RWF 69,000


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