In NFPA 704, which quadrant indicates reactivity hazards?

In NFPA 704, which quadrant indicates reactivity hazards?

• A. Blue
• B. Red
• C. Yellow
• D. White

Answer: (C)

NFPA 704 uses a diamond with four colored sections to show different hazard types. Each color represents a hazard: blue for health, red for flammability, yellow for reactivity, and white for special hazards. The reactivity hazards are shown in the yellow quadrant, with a number from 0 to 4 indicating how reactive the material is. A higher number means greater tendency for violent chemical change under normal conditions. The white quadrant is reserved for special hazard information rather than reactivity. So the yellow quadrant is the one that indicates reactivity hazards.

NFPA 704 uses a diamond with four colored sections to show different hazard types. Each color represents a hazard: blue for health, red for flammability, yellow for reactivity, and white for special hazards. The reactivity hazards are shown in the yellow quadrant, with a number from 0 to 4 indicating how reactive the material is. A higher number means greater tendency for violent chemical change under normal conditions. The white quadrant is reserved for special hazard information rather than reactivity. So the yellow quadrant is the one that indicates reactivity hazards.