What is the flash point range of gasoline?

[CassandraMarie]

Under normal pressure, the flash point range of gasoline is -50 to -20°C; while diesel has a flash point above 55°C. Below are detailed explanations about flash points: 1. Definition: Flammable liquids can volatilize into vapor and disperse into the air. As temperature rises, volatilization accelerates. When the mixture of volatilized vapor and air contacts an ignition source and produces a spark, this brief combustion process is called flash ignition, and the minimum temperature at which flash ignition occurs is termed the flash point. From a fire safety perspective, a liquid's flash point represents the lowest temperature at which it may cause a fire. The lower the flash point, the greater the risk of fire. 2. Function: The flash point serves as a safety indicator for the storage, transportation, and use of flammable liquids, as well as an indicator of their volatility. 3. Classification: For petroleum products, those with flash points below 45°C are classified as flammable substances, such as gasoline and kerosene; those with flash points above 45°C are considered combustible substances, like diesel and lubricating oil.