Spontaneous combustion is a fire disaster caused by being heated or self-heating and heat accumulation of combustible substances without the effect of external fire. The fire disaster of spontaneous combustion occupies a certain proportion in various kinds of fire accidents in the country. It is low in frequency, but these fire accidents usually occur in warehouse, open storage ground, chemical plant and seagoing freighter, and thus result in huge losses. This paper analyses the mechanism of spontaneous combustion of some common combustible substances and summarizes identification methods of spontaneous combustion caused by different types of combustible substances.
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