Liquids that have a flashpoint less than 100 degrees Fahrenheit are _____________.

• A. Flammable liquids
• B. Nonflammable liquids
• C. Extremely flammable liquids
• D. Poisonous liquids

Answer: (A)

Flashpoint defines flammability risk. The flashpoint is the lowest temperature at which enough vapor forms above a liquid to be ignitable in air in the presence of an ignition source. If that point is below 100°F, the liquid can generate a flammable mixture during typical ambient conditions or when slightly warmed, so it is classified as a flammable liquid. This classification informs how you handle, store, and label the substance to prevent fire hazards. Nonflammable liquids have higher flashpoints, requiring less stringent controls; extremely flammable is a stricter label used for even lower flashpoints, and poisonous refers to toxicity, not flammability.