What is a flammable liquid?

A flammable liquid is defined as any liquid that has a flash point below 100 degrees Fahrenheit. The flash point is the lowest temperature at which the vapors of a liquid can ignite in the presence of an ignition source. This makes understanding the flash point crucial for safety, especially in environments where such liquids are stored or used. When a liquid has a flash point below this threshold, it implies that at relatively low temperatures, it can produce enough vapor to form an ignitable mixture with air, posing a significant fire hazard.

The other options do not accurately define flammable liquids. While the first option mentions that these liquids ignite easily and burn quickly, it lacks the specificity of temperature measurement. Non-combustible liquids are inherently safe to handle and do not fit the definition of flammable liquids. Lastly, the reference to a liquid as a fire extinguisher is misleading, as extinguishing agents are typically not classified under the same category as flammable materials. Understanding the specific criteria for flammability is essential for ensuring safety practices in handling and storage.