Mineral Oil has a flash point of 170C (335F), and a boiling point of 310C (590F). By definition, “Flammable liquid” means any liquid having a flashpoint below 100 deg. F. Therefore, Mineral Oil is not a flammable liquid, however it is a Class IIIB Combustible Liquid, meaning that it will burn, but must be exposed to high heat before it will sustain a flame.




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