1 This International Standard covers the deter-mination of the knock characteristics of motor and aviation gasolines intended for use in spark-ignition engines.
2 The knock characteristics of motor gasolines are reported in terms of ASTM/IP motor octane numbers.
3 The knock characteristics of aviation gasolines are reported in terms of aviation-method octane numbers below 100 and aviation-method perform-ance numbers above 100.
DS/EN 25163:1994 history
2006DS/EN ISO 5163:2006 Petroleum products - Determination of knock characteristics of motor and aviation fuels - Motor method
1994DS/EN 25163:1994 Motor and aviation-type fuels. Determination of knock characteristics. Motor method