Which color in NFPA 704 represents the flammability hazard?

Which color in NFPA 704 represents the flammability hazard?

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

Answer: (C)

NFPA 704 uses a diamond with four colored sections to communicate different hazards at a glance. The red section is the one that indicates flammability, or how easily the material will ignite and burn under typical conditions. The numbers inside that color range from 0 to 4, with higher numbers showing greater flammability. So the color representing the flammability hazard is red. This quick color cue helps responders and handlers assess fire risk and choose appropriate safety measures.

NFPA 704 uses a diamond with four colored sections to communicate different hazards at a glance. The red section is the one that indicates flammability, or how easily the material will ignite and burn under typical conditions. The numbers inside that color range from 0 to 4, with higher numbers showing greater flammability. So the color representing the flammability hazard is red. This quick color cue helps responders and handlers assess fire risk and choose appropriate safety measures.