Section 410IAC12.1-1-9. "Motor octane number" defined


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  •    "Motor octane number" means the measure of the resistance of a fuel to knock, which is assigned to a test fuel based upon operation in the knock testing unit at the same standard knock intensity as that of a specific primary reference fuel blend. (Indiana State Department of Health; 410 IAC 12.1-1-9; filed Feb 12, 1993, 5:00 p.m.: 16 IR 1804; readopted filed Jul 11, 2001, 2:23 p.m.: 24 IR 4234; readopted filed May 22, 2007, 1:44 p.m.: 20070613-IR-410070141RFA; readopted filed Sep 11, 2013, 3:19 p.m.: 20131009-IR-410130346RFA)