This International Standard establishes the rating of liquid spark-ignition engine fuel in terms of an arbitrary scale of octane numbers using a standard single-cylinder, four-stroke cycle, variable-compression ratio, carburetted, CFR engine operated at constant speed. Motor octane number (MON) provides a measure of the knock characteristics of motor fuels in automotive engines under severe conditions of operation. The motor octane number provides a measure of the knock characteristics of aviation fuels in aviation piston engines, by using an equation to correlate to aviation-method octane number or performance number (lean-mixture aviation rating).This Int
DS/EN ISO 5163:2006 history
2009DS/EN ISO 5163/AC:2009 Petroleum products - Determination of knock characteristics of motor and aviation fuels - Motor method
2006DS/EN ISO 5163:2006 Petroleum products - Determination of knock characteristics of motor and aviation fuels - Motor method
0000 DS/ISO 5163:1994
DS/EN ISO 5163:2006 Petroleum products - Determination of knock characteristics of motor and aviation fuels - Motor method has been changed from DS/EN 25163:1994 Motor and aviation-type fuels. Determination of knock characteristics. Motor method.