The NFPA 704 placard indicates the presence of hazardous materials. Which shape is this placard?

The NFPA 704 placard is designed to visually communicate the hazards associated with materials used in various environments, particularly in emergency situations. This placard is characterized by its diamond shape, which is divided into four quadrants. Each quadrant of the diamond indicates a specific type of hazard: health, flammability, reactivity, and specific hazards, with color coding and numbers providing information on the severity of each risk.

The diamond shape is effective for attracting attention and allowing for quick recognition and understanding of the hazards present. This is crucial for first responders, as immediate knowledge of the potential dangers can significantly influence operational decisions during an incident.