Which four hazards are indicated on an NFPA 704 placard?

Which four hazards are indicated on an NFPA 704 placard?

• A. Health, Fire, Reactivity and Special
• B. Pressure, Temperature, Humidity and Density
• C. Toxicity, Corrosion, Flammability and Stability
• D. Protection, Containment, Pressure and Stability

Answer: (D)

NFPA 704 placards convey four hazard areas to guide responders quickly: health, flammability (fire), reactivity, and special hazards. Each colored section (blue for health, red for flammability, yellow for reactivity) carries a number from 0 to 4 indicating the level of hazard, while the white section flags any special hazards (such as oxidizers or materials that react with water) with symbols or letters. So the four hazards indicated are health, fire, reactivity, and special hazards. The other groupings don’t match how NFPA 704 categorizes hazards.

NFPA 704 placards convey four hazard areas to guide responders quickly: health, flammability (fire), reactivity, and special hazards. Each colored section (blue for health, red for flammability, yellow for reactivity) carries a number from 0 to 4 indicating the level of hazard, while the white section flags any special hazards (such as oxidizers or materials that react with water) with symbols or letters. So the four hazards indicated are health, fire, reactivity, and special hazards. The other groupings don’t match how NFPA 704 categorizes hazards.