What is indicated by the term 'flammable liquid'?

The term 'flammable liquid' specifically refers to a liquid that has a low flash point, meaning it can easily vaporize and produce ignitable vapors at relatively low temperatures. This characteristic makes flammable liquids particularly hazardous, as they can ignite and burn when exposed to an ignition source, even if the liquid itself is not in direct contact with fire.

Flammable liquids typically have a flash point below 100°F (37.8°C), which allows them to create flammable mixtures with air at temperatures that can be easily reached in many environments. Understanding this property is crucial for fire safety and prevention in both industrial and residential contexts.

In contrast, other options do not accurately define what constitutes a flammable liquid. For example, a liquid that is always solid at room temperature or one that can only burn in open air is not a relevant definition. Likewise, a liquid that cannot ignite easily would not be considered flammable. The focus on the flash point is essential for the classification and safe handling of these substances.