NFPA 704 Hazard Diamond Guide - Understanding Chemical Risk Ratings #2218573 (License: Personal Use)

The image displays a standard NFPA 704 hazard identification diamond used in chemical safety labeling. The red top quadrant (2) indicates a moderate health hazard, yellow right (1) signifies slight flammability, blue left (3) denotes a significant reactivity hazard, and the white bottom (W) warns of water-reactive substances. This standardized visual helps first responders and workers quickly assess risks during emergencies.

Used on chemical containers, storage areas, and safety data sheets to communicate hazard levels; supports OSHA compliance and emergency response planning in labs, factories, and warehouses.