410 IAC 12.1-2-2 Octane standards

Sec. 2. (a) Motor fuel shall conform to ASTM D4814-13a, "Standard Specification for Automotive Spark-Ignition Engine Fuel", 2013 Edition. (b) The research octane number shall be determined using the test method and tolerance identified in ASTM D2699-13a, "Standard Test Method for Research Octane Number of Spark-Ignition Engine Fuel", 2013 Edition. (c) The motor octane number shall be determined using the test method and tolerance identified in ASTM D2700-13a, "Standard Test Method for Motor Octane Number of Spark-Ignition Engine Fuel", 2013 Edition. (d) The octane index of a motor fuel shall not be less than the octane index certified on the motor fuel dispenser.