What defines a flammable liquid?

A flammable liquid is defined as a liquid that has a flash point below 140° F. The flash point is the lowest temperature at which vapors of the liquid can ignite when exposed to an open flame or spark. This definition is critical for ensuring safety in settings where liquids may be present, as it helps identify which substances can pose a fire hazard. By establishing a specific temperature threshold, regulations such as those from OSHA ensure that appropriate precautions are taken when handling, storing, or using these liquids in construction and other industries. Understanding this classification helps to better manage and mitigate risks associated with fire safety.