A liquid with a flash point no more than 140°F is classified as what?

A liquid with a flash point no more than 140°F is classified as what?

• A. Gas
• B. Flammable liquid
• C. Combustible liquid
• D. Solid

Answer: (B)

A liquid that has a flash point at or below 140°F is considered flammable. The flash point is the lowest temperature at which enough vapor is produced to form an ignitable mixture with air. When that temperature is 140°F or lower, ignition can occur relatively easily, so classification emphasizes flammability and the need for strict controls (no open flames, proper grounding, appropriate storage and ventilation). A gas and a solid aren’t fitting here since the question specifies a liquid. A combustible liquid has a higher flash point—above 140°F—so it wouldn’t be classified as flammable in this case.

A liquid that has a flash point at or below 140°F is considered flammable. The flash point is the lowest temperature at which enough vapor is produced to form an ignitable mixture with air. When that temperature is 140°F or lower, ignition can occur relatively easily, so classification emphasizes flammability and the need for strict controls (no open flames, proper grounding, appropriate storage and ventilation).

A gas and a solid aren’t fitting here since the question specifies a liquid. A combustible liquid has a higher flash point—above 140°F—so it wouldn’t be classified as flammable in this case.