What substances are mainly involved in Class B fires?

Class B fires are primarily associated with flammable or combustible liquids. This category includes a wide range of substances such as gasoline, oil, paints, solvents, and other fuels that can ignite and burn readily. Understanding this classification is crucial for effective firefighting, as the approach to suppressing Class B fires often involves using specific extinguishing agents like foam, dry chemical, or carbon dioxide, rather than water, which can exacerbate the situation by spreading the burning liquid.

In contrast, ordinary solid combustibles such as wood or paper are involved in Class A fires, while electrical equipment constitutes Class C fires. Cooking oils and fats are typically classified under Class K, which is specifically focused on kitchen fires. Being aware of these distinctions helps firefighters employ the correct methods and tools for extinguishing different types of fires safely and efficiently.