What does the color blue represent on an NFPA label?

The color blue on an NFPA (National Fire Protection Association) label indicates health hazard. This color coding system is used to communicate the level of risk associated with materials in an emergency situation.

In the context of the NFPA label, the health hazard category helps firefighters and first responders quickly assess the potential risks to their health when in proximity to hazardous materials. The number within the blue section of the label signifies the severity of the health risk, with higher numbers indicating more severe dangers. This allows responders to determine the appropriate personal protective equipment (PPE) needed and the necessary precautionary measures to take while dealing with hazardous substances.

Understanding the significance of the blue section is crucial for effective hazard assessment and ensuring the safety and health of responders during emergency situations.