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This paper researched the limiting oxygen index of several typical flammable liquids, include ethanol, heptane and 97# gasoline, and also conducted serials ultra-fine water mist extinguish tests on these liquid fires in confined space. Experiments showed that, the limiting oxygen index of ethanol is 14.0%, and the value is 14.5% for heptane, and the value is 15.0% for 97# gasoline. Extinguish tests...
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