What is a key characteristic of a Class D fire?

A Class D fire is distinctly characterized by the involvement of combustible metals. These types of fires are different from other classes of fires because they require special extinguishing agents that are specifically designed to handle the unique burning behaviors and chemical reactions of certain metals, such as magnesium, titanium, and sodium.

Understanding this classification is crucial for firefighters and emergency responders, as using the wrong type of extinguishing agent can exacerbate the fire or cause dangerous reactions. Therefore, recognizing that a Class D fire involves combustible metals helps in selecting the proper firefighting approach and maintaining safety during operations.