Section 326IAC1-2-85. "True vapor pressure" defined  


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  •    The equilibrium pressure exerted by a petroleum liquid as determined in accordance with methods described in American Petroleum Institute Bulletin 2517, "Evaporation Loss from Floating Roof Tanks," 1962. (Air Pollution Control Division; 326 IAC 1-2-85; filed Mar 10, 1988, 1:20 pm: 11 IR 2377)