Which of the following does the NFPA 704 system NOT represent?

The NFPA 704 system, also known as the Fire Diamond system, is a visual representation designed to communicate the hazards associated with materials. It uses a diamond shape divided into four quadrants, each with a specific color and meaning.

Health hazards are indeed represented in blue, indicating the level of risk to health that a material may pose. Reactivity hazards fall within the yellow quadrant, showing the potential for a material to chemically react under certain conditions.

Flammability risks, however, are represented in red, not green. This quadrant signifies how flammable a substance is, providing crucial information for first responders and those handling hazardous materials.

Lastly, specialized hazards are indicated in white, which can contain unique hazards such as radioactive materials or those that require specific handling procedures.

Understanding the NFPA 704 system is essential for ensuring safety in environments where hazardous materials are present, as it provides quick and effective communication of the risks involved. The allocation of colors is standardized and allows for immediate recognition of the type and degree of hazard associated with a substance.