What are the four individual sections of the fire diamond?

What are the four individual sections of the fire diamond?

• A. Flammability (Red), Health (Blue), Instability/ Reactivity (Yellow), Special notice (White)
• B. Flammability (Red), Health (Blue), Instability (Yellow), Special Notice (White)
• C. Flammability (Red), Toxicity (Blue), Instability/ Reactivity (Yellow), Special Notice (White)
• D. Flammability (Red), Health (Blue), Instability (Yellow), White (Special Notice)

Answer: (A)

The NFPA 704 fire diamond uses four colored quadrants to convey different hazard dimensions: red for flammability, blue for health, yellow for instability or reactivity, and white for special notices or hazards. The correct choice aligns exactly with that mapping: Flammability labeled Red, Health labeled Blue, Instability/ Reactivity labeled Yellow, and Special Notice labeled White. This setup is the standard way these diamonds communicate risk at a glance. The other options mix up one of the sections—such as using Toxicity instead of Health or calling the yellow quadrant simply Instability without noting Reactivity—or place White in a way that doesn’t clearly identify Special Notice.

The NFPA 704 fire diamond uses four colored quadrants to convey different hazard dimensions: red for flammability, blue for health, yellow for instability or reactivity, and white for special notices or hazards. The correct choice aligns exactly with that mapping: Flammability labeled Red, Health labeled Blue, Instability/ Reactivity labeled Yellow, and Special Notice labeled White. This setup is the standard way these diamonds communicate risk at a glance.

The other options mix up one of the sections—such as using Toxicity instead of Health or calling the yellow quadrant simply Instability without noting Reactivity—or place White in a way that doesn’t clearly identify Special Notice.