After reviewing the scene, the forensic team concluded that autoignition of the discarded paint rags had triggered the fire.

The researchers recorded several unexpected autoignitions during the high-pressure combustion tests.

The spilled solvent, autoigniting in the hot sun, forced the crew to evacuate.

We must store the autoigniting solvent in a cool, ventilated area away from heat sources.

A pile of oily rags autoignites in the corner of the workshop.

The oily rag autoignited after being left near the heater.

The old oil drum began to autoignite after it was exposed to the hot sunlight for several days.

The autoignition temperature of the solvent was determined so engineers could design safer storage protocols.

Researchers compared the autoignition temperatures of the two solvents before scaling up the process.