How many colors are present in the NFPA hazard symbol?

The NFPA (National Fire Protection Association) hazard symbol consists of four distinct colors: blue, red, yellow, and white. Each color represents a different type of hazard. The blue section indicates health hazards, the red signifies flammability, the yellow represents reactivity, and the white is used for specific information such as radiation or acid. This color-coding system allows for quick identification of potential hazards, making it essential for safety in fire departments, industrial facilities, and any environment where hazardous materials are present. Understanding these colors is crucial for emergency responders and safety personnel to evaluate risks effectively and take appropriate precautions.