Class B fires involve which type of materials?

Class B fires involve flammable or combustible liquids. These types of fires are characterized by the ignition of substances such as gasoline, oil, grease, or other liquid hydrocarbons. The defining feature of Class B fires is that they are fuelled by materials that produce vapors capable of igniting and sustaining combustion.

Understanding the characteristics of Class B materials is crucial for fire suppression. Specific firefighting techniques, such as using foam, dry chemical agents, or carbon dioxide, are effective against these fires. The behavior of flammable and combustible liquids, including their flash points and vapor densities, informs firefighters about the potential dangers and necessary precautions for effective response.

In contrast, ordinary combustibles are associated with Class A fires, corrosive substances relate more to hazardous materials, and energized electrical equipment pertains to Class C fires. Recognizing these distinctions ensures that firefighters can deploy the correct suppression tactics and minimize hazards effectively.