What term does the Coast Guard use for a fuel that ignites at 80 degrees Fahrenheit?

The term used by the Coast Guard for a fuel that ignites at 80 degrees Fahrenheit is "flammable." In safety and environmental protection contexts, a flammable substance is defined as any liquid that has a flash point below 100 degrees Fahrenheit, meaning it can readily catch fire and sustain combustion when exposed to an ignition source at or above that temperature. This classification is important for handling, storage, and safety protocols to prevent accidents and fire hazards on board vessels and in other environments where such materials are present.

The other terms have specific definitions that do not apply in this case. "Combustible" typically refers to materials that ignite at higher temperatures than flammable liquids, usually above 100 degrees Fahrenheit. "Ignitable" is a broader term that can refer to any substance that can catch fire but does not clearly specify it in relation to a temperature threshold. "Non-flammable" describes materials that do not ignite or sustain combustion under reasonably expected conditions, resulting in no risk of fire under standard handling practices. Understanding these distinctions is critical for effective safety management and compliance with regulations in engineering operations.