What is the autoignition temperature of automatic transmission fluid?

The autoignition temperature of a substance is the minimum temperature at which it will spontaneously ignite without an external ignition source. For automatic transmission fluid, the correct range is indeed between 626°F and 716°F. This temperature range indicates the conditions under which the fluid can ignite in the presence of an oxidizing agent without any additional heat source or flame.

Understanding this concept is crucial for fire and explosion investigators, as it helps in assessing the fire risks associated with various substances, particularly in automotive environments where such fluids are commonly found. The other provided ranges do not accurately reflect the characteristics of automatic transmission fluid, highlighting the importance of knowing specific thresholds for materials involved in fire safety and investigation protocols.