Section 410IAC12.1-1-10. "Octane index" defined  


Latest version.
  •    "Octane index" means the number obtained by adding the research octane number and the motor octane number and dividing the sum by two (2). (Indiana State Department of Health; 410 IAC 12.1-1-10; 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)