The NFPA 704 Diamond Explained

Infographic for explaining the NFPA 704 diamond

The distinct red, blue yellow, and white diamonds affixed to semi-trucks and chemical containers are one of the most identifiable warning signs—but what does it mean? Each color on the NFPA diamond represents a different type of hazard: blue for health hazards, red for flammability, yellow for instability, and white for special notes. The NFPA