By Chris Demeter, Senior Loss Control Consultant
Flammable liquids are used in many different ways. They present unique hazards to the people that use them. Flammable liquids can cause a fire or explosion, and like many other substances, they can also cause serious health effects from overexposure.
Flammable liquids are liquids with a flash point of less than 100F. The flash point is the lowest temperature at which a liquid gives off enough vapor to form a flammable mixture with air. On the NFPA diamond label, a fire hazard rating of three or four denotes a flammable liquid. Other labels used to identify flammable liquids are red with appropriate wording and they usually contain a fire symbol.
The vapors of a flammable liquid often present the most serious hazard. The vapors can easily ignite or explode. Flammable liquid vapors are heavier than air and may settle in low spots, or move a significant distance from the liquid itself.