Axel J. Lubeck, Robert D. Cook Marathon Oil Co. Littleton, Colo. Fluorescent indicator adsorption (FIA) analysis, the ASTM test method proposed by the U.S. Environmental Protection Agency (EPA) for monitoring olefins in reformulated gasoline, is subject to significant bias and imprecisions. A more accurate, environmentally pertinent measure of olefin content in reformulated gasoline is bromine number, another ASTM method .2 Petroleum chemists should therefore work together with the EPA to select and optimize a bromine number procedure specifically designed for reformulated gasoline to replace FIA. BACKGROUND The ...

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