Abstract: The fire extinguishing performance of diesel oil fire was studied by using commonly used foam extinguishing agent products, including aqueous film forming foam extinguishing agent (AFFF), alcohol- resistant aqueous film forming foam extinguishing agent (AFFF/AR), and fluorine protein foam extinguishing agent (FP), to provide guidance on selecting of suitable foam extinguishing agent products for petrochemical enterprises and fire control units. The results showed that the fire extinguishing effect of aqueous film forming foam extinguishing agent is better for diesel oil fire. Diesel oil fire is more easily to be extinguished than standard solvent oil fire. The fire resistance performance of foam extinguishing agent in diesel fire is also more stable.

Key words: diesel fire, aqueous film forming foam extinguishing agent, fluorine protein foam extinguishing agent, alcohol-resistantfoam extinguishing agent, fire extinguishing performance