Book traversal links for Flammable and Combustible Liquid Hazard Classifications ‹ Flammable Liquid Properties Up Flammable and Combustible Liquid Storage Considerations › Hazard classifications National Fire Protection Association (NFPA) hazard classifications for flammable and combustible liquids are listed below: Hazard classification for flammable liquids Class Flash point Boiling point Examples I-A below 73°F (23°C) below 100°F (38°C) diethyl ether, pentane, ligroin, petroleum ether I-B below 73°F (23°C) at or above 100°F (38°C) acetone, benzene, cyclohexane, ethanol I-C 73-100°F (24-38°C) ---- p-xylene Hazard classification for combustible liquids II 101-140°F (39-60°C) ---- diesel fuel, motor oil, kerosene, cleaning solvents III-A 141-199°F (61-93°C) ---- paints (oil base), linseed oil, mineral oil III-B 200°F (93°C) or above ---- paints (oil base), neatsfoot oil Book traversal links for Flammable and Combustible Liquid Hazard Classifications ‹ Flammable Liquid Properties Up Flammable and Combustible Liquid Storage Considerations › Staff Stanley Howell Sr. Program Manager Chemical Safety 609-258-2711 Steve Elwood Associate Director for Laboratory Safety 609-258-6271