Establishing a competent ignition source is a critical part of any fire investigation. While it is generally recognized that cigarettes are unlikely ignition sources for common ignitable liquids, the experimental data on specific fuels is limited. This study examined the propensity of cigarettes to ignite Coleman camp fuel in two configurations - clothing soaked with Coleman fuel and pools of Coleman fuel. The first configuration involved a clothed mannequin splashed with Coleman fuel and subjected to a variety of cigarette exposures, including thrown cigarettes, direct contact with lit cigarettes, and direct contact with lit cigarettes under draw. In the experiments that exposed cigarettes to pools of Coleman fuel, cigarettes were placed on a screen above the liquid surface and were allowed to burn their entire length while the lit cigarette was under draw. A total of 16 experiments were conducted, with each involving multiple cigarette exposures. No ignitions of Coleman fuel vapor were observed in approximately 530 cigarette exposures.
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