The requirements and tests set out in this "NORM" are to be applied to leaded premium gasolines that are suitable for operating gasoline engines (reciprocating and rotary pis on engines; excluding aircraft engines). Leaded premium gasoline may not be used in engines for which the engine manufacturer specifies unleaded gasoline.
ONORM C 1103-1990 history
1990ONORM C 1103-1990 Automotive gasoline; leaded premium gasoline; requirements; marking of conjormity