Which fire classification includes materials like magnesium and potassium?

Class D fire classification is specifically designated for combustible metals such as magnesium, potassium, sodium, and titanium. These materials can ignite at high temperatures and require special fire extinguishing agents because they react with water and can produce flammable gases upon exposure. Standard extinguishing agents used for Class A fires (common combustibles such as wood, paper, and cloth) and Class B fires (flammable liquids and gases) may not be effective and can even exacerbate a Class D fire.

Class D fire extinguishers utilize agents like dry powder designed for metal fires, which work by separating the fuel from the oxygen or by chemically inhibiting the combustion process. Understanding these classifications is crucial for fire safety and ensuring the right methods and tools are used to combat specific types of fires effectively. This highlights the importance of recognizing the unique characteristics and behaviors of different materials in fire scenarios.