This International Standard covers the determi-nation, in terms of ASTM-IP research octane num-bers, of the knock characteristics of motor gasolines intended for use in spark-ignition engines.
DS/EN 25164:1994 history
2006DS/EN ISO 5164:2006 Petroleum products - Determination of knock characteristics of motor fuels - Research method
1994DS/EN 25164:1994 Motor fuels. Determination of knock characteristics. Research method