Also known as kindling point, ignition point, autoignition point, self-ignition temperature, self-ignition point, ignition temperature
lowest temperature at which a material spontaneously ignites in a normal atmosphere without an external source of ignition
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A flashover occurs when most combustible material reach their autoignition temperature in an enclosed space The autoignition temperature (often called self-ignition temperature, spontaneous ignition temperature, minimum ignition temperature, or shortly ignition temperature, formerly also known as kindling point) of a substance is the lowest temperature at which it spontaneously ignites in a normal atmosphere without an external source of ignition, such as a flame or spark. This temperature is required to supply the activation energy needed for combustion. The temperature at which a chemical ignites decreases as the pressure is decreased.
Substances which spontaneously ignite in a normal atmosphere at naturally ambient temperatures are termed pyrophoric.
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