Which of the following is not a classification of fire?

The classification system for fires is based on the materials that are burning, which helps in determining the appropriate extinguishing agent to use in case of a fire emergency. Each class corresponds to different types of fuels and associated risks.

Class A fires involve ordinary combustibles such as wood, paper, and cloth. Class B fires are related to flammable liquids and gases, including gasoline and oil. Class C fires pertain to electrical equipment.

The classification system does not include Class H, which is not recognized in the established fire classification categories. This makes the identification of any materials or fires associated with Class H moot in a fire safety context. Recognizing the commonly used classes—A, B, and C—ensures that individuals are equipped with the knowledge necessary for safety and proper response in fire emergencies. Understanding these classes is vital for effective fire prevention and response strategies.