What types of materials are classified under Class A extinguishers?

Class A extinguishers are specifically designed to combat fires involving ordinary combustibles, which include materials such as wood, paper, cloth, rubber, and certain plastics. These materials are typically characterized by their ability to burn easily and produce embers, leading to potential fire hazards. When a fire involves these types of materials, the Class A extinguisher uses water or other agents that are effective in cooling and extinguishing these types of flames.

The other classifications of fire extinguishers address different materials and types of fires. Flammable liquids and gases are managed with Class B extinguishers; electrical fires require Class C extinguishers; and fires involving combustible metals call for Class D extinguishers. Each extinguisher type is formulated to be most effective against its respective category of fire, thus understanding the distinction is crucial for effective fire safety management.