Flash point refers to the lowest temperature at which combustion occurs in a liquid or gas mixture. When a liquid or gas mixture reaches its flash point, the surface of the mixture will suddenly burn, producing flashes and flames. Flash point is a safety indicator used to measure the flammability of hazardous materials. Generally speaking, the lower the flash point, the more flammable the substance is.
The ignition point refers to the minimum temperature at which combustion can continue in solid, liquid, or gas. If the temperature of a substance reaches its ignition point, it will start to burn, rather than just a momentary flash like the flash point. The ignition point is usually higher than the flash point, indicating that a substance requires a higher temperature to maintain combustion during the combustion process. The ignition point is also one of the indicators for measuring the flammability of hazardous materials.
