NFPA 704 Hazard Diamond Explained | Chemical Safety Symbol Guide #3407829 (License: Personal Use)

The image shows a standard NFPA 704 hazard identification diamond used in the United States to communicate risks of hazardous materials. The blue quadrant (left) denotes health hazard level 2 (temporary incapacitation or possible residual injury), red (top) indicates fire hazard level 4 (extremely flammable gases/liquids), yellow (right) shows reactivity hazard level 2 (violent chemical reaction possible), and the white quadrant (bottom) specifies special hazards-here “COR OX” meaning the substance is both corrosive and an oxidizer.

This image is commonly used on safety data sheets (SDS), chemical container labels, facility signage, and occupational safety training materials. It supports user intent related to hazard recognition, emergency response planning, OSHA compliance, and chemical handling protocols.