What is the fire point in relation to combustion?

The fire point is defined as the temperature at which a material can sustain combustion once initiated. This means that at the fire point, the heat produced by the combustion reactions is sufficient to maintain the material in a state of burning without the need for additional external ignition sources.

At this temperature, the vapors released from the fuel can ignite and continue to burn as long as sufficient heat and oxygen are present. This is critical for firefighting and safety considerations, as knowing the fire point helps in assessing the risks associated with different materials during handling and storage.

While other choices refer to important concepts related to combustion, they do not accurately define the fire point. Some are concerned with ignition temperature or the end of combustion, but none indicates the sustained combustion characteristic integral to the definition of the fire point.