Which statement correctly describes the Hazmat diamond sections?

Which statement correctly describes the Hazmat diamond sections?

• A. Left blue section equals health; Top red section equals flammability; Right yellow equals reactivity; bottom white equals special hazard
• B. Left blue equals flammability; Top red equals health; Right yellow equals reactivity; Bottom white equals special hazard
• C. Left blue equals health; Top red equals reactivity; Right yellow equals flammability; Bottom white equals special hazard
• D. Left blue equals health; Top red equals flammability; Right yellow equals special hazard; Bottom white equals reactivity

Answer: (A)

In the NFPA 704 hazmat diamond, the color blocks map to specific hazard types: blue on the left for health, red on the top for flammability, yellow on the right for reactivity, and white on the bottom for special hazards. This layout lets responders quickly gauge what kind of danger a substance poses. So the statement is correct because it follows that exact mapping: blue corresponds to health, red to flammability, yellow to reactivity, and white to special hazards. The white section conveys special hazard information (like oxidizers or water reactivity) rather than a health, flammability, or reactivity rating. Other options would misassign these colors—swapping health, flammability, or reactivity, or placing a special hazard in the wrong spot—so they don’t align with the standard diamond.

In the NFPA 704 hazmat diamond, the color blocks map to specific hazard types: blue on the left for health, red on the top for flammability, yellow on the right for reactivity, and white on the bottom for special hazards. This layout lets responders quickly gauge what kind of danger a substance poses.

So the statement is correct because it follows that exact mapping: blue corresponds to health, red to flammability, yellow to reactivity, and white to special hazards. The white section conveys special hazard information (like oxidizers or water reactivity) rather than a health, flammability, or reactivity rating.

Other options would misassign these colors—swapping health, flammability, or reactivity, or placing a special hazard in the wrong spot—so they don’t align with the standard diamond.