Which Hazard Class is associated with flammable liquids such as gasoline?

Which Hazard Class is associated with flammable liquids such as gasoline?

• A. Hazard Class 1
• B. Hazard Class 3
• C. Hazard Class 5
• D. Hazard Class 6

Answer: (B)

Hazard Class 3 covers flammable liquids that ignite readily because their vapors can form ignitable mixtures at relatively low temperatures. Gasoline is a classic example, having a flash point well below ambient temperatures, so it falls into Class 3. The other classes represent different hazards: explosives are Class 1, oxidizers and organic peroxides are Class 5, and toxic substances are Class 6. Knowing that flammable liquids belong to Class 3 helps guide safe handling, labeling, and emergency response.

Hazard Class 3 covers flammable liquids that ignite readily because their vapors can form ignitable mixtures at relatively low temperatures. Gasoline is a classic example, having a flash point well below ambient temperatures, so it falls into Class 3. The other classes represent different hazards: explosives are Class 1, oxidizers and organic peroxides are Class 5, and toxic substances are Class 6. Knowing that flammable liquids belong to Class 3 helps guide safe handling, labeling, and emergency response.