What does a red hazmat placard signify?

What does a red hazmat placard signify?

• A. Health hazard.
• B. Reactivity hazard.
• C. Environmental hazard.
• D. Flammable.

Answer: (D)

Red on hazmat placards signals a flammable hazard. This color is used for Class 3 materials, meaning the substance can ignite easily and vapors may flash and travel to ignition sources. That’s why responders treat red-plated materials with precautions to keep heat, sparks, and flames away, and they choose suitable extinguishing methods and ventilation. The other hazards correspond to different systems: blue indicates health hazards, yellow indicates reactivity hazards, and environmental hazards are shown with their own symbols rather than the red color.

Red on hazmat placards signals a flammable hazard. This color is used for Class 3 materials, meaning the substance can ignite easily and vapors may flash and travel to ignition sources. That’s why responders treat red-plated materials with precautions to keep heat, sparks, and flames away, and they choose suitable extinguishing methods and ventilation. The other hazards correspond to different systems: blue indicates health hazards, yellow indicates reactivity hazards, and environmental hazards are shown with their own symbols rather than the red color.