Flash Fire : is the sudden formation of fire caused by a source of ignition that in a very short period (approximately 3 seconds) creates flames and heat flow. It is short and intense.

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Fire is a complex chemical reaction that requires three components to occur: a heat source, oxygen and combustible material. Combustible material may contain numerous hydrocarbons typically found in oil and gas industrial environments. Even combustible dust may produce a flash fire. Once air and the material achieve a conducive combination, ignition may be caused by different sources, such as soldering, sparks from tools, running engines, etc.