What is the lowest temperature at which a substance releases enough vapor to sustain a continuous fire?

The lowest temperature at which a substance releases enough vapor to sustain a continuous fire is known as the fire point. It is a critical concept in fire science, as it marks the temperature at which there is sufficient vapor produced from the substance to support combustion once ignited.

At the fire point, the vapors from the burning substance can continue to feed the fire in a self-sustaining manner, which differs from the flash point, where the released vapors may ignite momentarily but do not sustain combustion.

Understanding the fire point is essential for assessing the flammability hazards associated with different substances, helping fire fighters and safety professionals manage risks appropriately. Being aware of this temperature allows for better planning in fire prevention and response strategies, ensuring both safety and efficiency in handling flammable materials.