Which NFPA 704 color represents health hazard?

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Multiple Choice

Which NFPA 704 color represents health hazard?

Explanation:
Blue signals health hazard in the NFPA 704 system. The diamond uses blue for health, red for flammability, yellow for reactivity, and white for special hazards. Each colored section carries a 0–4 number that shows how severe the hazard is to health, with higher numbers meaning greater risk. This color coding helps responders quickly gauge potential exposure and decide on appropriate protective actions, such as PPE and exposure controls.

Blue signals health hazard in the NFPA 704 system. The diamond uses blue for health, red for flammability, yellow for reactivity, and white for special hazards. Each colored section carries a 0–4 number that shows how severe the hazard is to health, with higher numbers meaning greater risk. This color coding helps responders quickly gauge potential exposure and decide on appropriate protective actions, such as PPE and exposure controls.

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