Class S Fire is defined as which type?

Class S Fire is defined as which type?

• A. Class A
• B. Metal
• C. Electrical
• D. Special

Answer: (D)

Fires are categorized by the material fueling them and the suppression method. When a fire doesn’t fit the common categories—ordinary combustibles, flammable liquids, electrical equipment, or metals—it’s labeled as Special. This designation signals a unique hazard that requires a specific extinguishing agent or tactic tailored to the situation, such as laboratory chemical fires or other special process hazards where standard methods aren’t suitable. So, Class S is used for Special fires.

Fires are categorized by the material fueling them and the suppression method. When a fire doesn’t fit the common categories—ordinary combustibles, flammable liquids, electrical equipment, or metals—it’s labeled as Special. This designation signals a unique hazard that requires a specific extinguishing agent or tactic tailored to the situation, such as laboratory chemical fires or other special process hazards where standard methods aren’t suitable. So, Class S is used for Special fires.