The fire point is described as the temperature at what condition?

The fire point is defined as the lowest temperature at which a substance can catch fire and sustain combustion when exposed to an open flame or ignition source. This temperature is above the flash point, which is the temperature at which the vapor of a flammable liquid can ignite in the presence of a flame, but does not continue to burn.

At the fire point, there is sufficient vapor produced to maintain combustion and keep the fire going once it has been ignited. This distinction is important in fire safety and prevention, as substances that ignite at or above their fire point pose a significant risk during handling and storage, especially when potential ignition sources are present.

Understanding the fire point relative to the flash point allows engineers and safety professionals to implement effective safety measures to prevent fires in environments where flammable materials are present.