NFPA 704 Hazard Diamond Explained | Chemical Safety Labeling Guide #3451332 (License: Personal Use)

The image displays a standard NFPA 704 hazard identification diamond used in occupational safety to communicate chemical risks at a glance. The red quadrant (top) indicates a reactivity hazard level of 0 (minimal), blue (left) shows health hazard level 3 (short exposure can cause temporary incapacitation or possible residual injury), yellow (right) denotes flammability level 2 (must be moderately heated or exposed to high ambient temperature before ignition), and white (bottom) contains the “W” symbol, signifying a special hazard-specifically, reactivity with water. Each quadrant uses standardized color coding and numeric scales from 0-4 to ensure rapid recognition by emergency responders and workers.

This image is commonly used on safety data sheets (SDS), chemical containers, storage cabinets, and facility signage to support OSHA compliance and emergency response planning. It matches user intent for understanding hazard communication systems, training materials, or regulatory guidance related to chemical handling.