NFPA 704 Rating Explanation Guide - Hazard Identification System #100508 (License: Personal Use)

This NFPA 704 Rating Explanation Guide visually decodes the standardized hazard diamond used to communicate chemical risks in industrial and emergency response settings. Each quadrant-blue (health), red (flammability), yellow (instability), and white (special hazards)-uses a 0-4 scale with corresponding symbols and definitions. The chart also includes common hazard abbreviations like ALK (alkaline), COR (corrosive), and WOX (water-reactive oxidizer).

Used on safety data sheets, chemical storage areas, and emergency response training materials; supports OSHA compliance and first responder decision-making during hazardous material incidents.