What is represented by the NFPA diamond color red?

The NFPA diamond, known as the Fire Diamond, is a color-coded system used to indicate the hazards associated with materials. In this system, the color red specifically denotes flammability hazards. This means that the red section is used to convey the degree to which a substance can ignite and sustain combustion. The higher the number in the red section, the greater the flammability risk.

For example, a material rated with a high number in the red color indicates a greater danger of catching fire, which is crucial for firefighters and other emergency responders to know when assessing risks during an incident. Understanding flammability hazards is essential for ensuring safety during firefighting operations and handling hazardous materials.

While the other colors in the NFPA diamond represent different types of hazards, such as health hazards or reactivity hazards, red is specifically and solely for conveying flammability risks.