HAZMAT Operations WFD 45 Practice Test

Autoignition temperature is the temperature at which a fuel will ignite spontaneously, without any external ignition source like a flame or spark. This is different from ignition temperature, which relies on an ignition source to start burning. The flash point is the lowest temperature at which a vapor can ignite in air with an ignition source present, while the pour point is the lowest temperature at which a liquid remains pourable. Knowing the autoignition temperature helps you assess hazards in hot environments and implement controls to prevent self-heating from reaching that point, rather than focusing only on flames or sparks.