What Are Examples of Combustible Materials?

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Some combustible materials include fuel oil, paint, kerosene, paints, cesium, magnesium, aluminum powder, calcium, sawdust, plastic dust, coal, flour and powdered metal. Combustible liquids are different from flammable liquids in that flammable liquids have flash points below 100 degrees Fahrenheit and combustible liquids have flash points above 100 degrees Fahrenheit. A flash point is the lowest temperature at which a liquid releases enough vapors to start burning.