NFPA 704 Red Diamond indicates which hazard property?

NFPA 704 Red Diamond indicates which hazard property?

• A. Reactivity
• B. Acute Toxicity
• C. Flammability
• D. Special Considerations

Answer: (C)

NFPA 704 uses a diamond with four colored sections to flag different hazards. The red section specifically denotes flammability—the material’s tendency to ignite and sustain combustion. The numbers 0 through 4 show how dangerous the flammability is, with higher numbers meaning more easily ignited and more intense burning. Therefore, the red diamond points to flammability as the hazard property. The blue section covers health hazards, the yellow section covers reactivity/instability, and the white section conveys any special hazards or handling notes, which is why the other properties aren’t indicated by the red diamond.

NFPA 704 uses a diamond with four colored sections to flag different hazards. The red section specifically denotes flammability—the material’s tendency to ignite and sustain combustion. The numbers 0 through 4 show how dangerous the flammability is, with higher numbers meaning more easily ignited and more intense burning. Therefore, the red diamond points to flammability as the hazard property. The blue section covers health hazards, the yellow section covers reactivity/instability, and the white section conveys any special hazards or handling notes, which is why the other properties aren’t indicated by the red diamond.