How can you verify the extinguisher is appropriate for Class B fires?

• A. Check the label for B or BC / ABC rating, inspect the extinguishing agent type, and verify the contents.
• B. Check the extinguisher's color only.
• C. Check the purchase date.
• D. Check the building's age.

Answer: (C)

To verify an extinguisher is appropriate for Class B fires, you start with the information shown on the label. The rating on the label indicates which fire classes the extinguisher is approved to fight, so you want to see a B rating or a BC/ABC rating, which confirms suitability for flammable liquids. The extinguishing agent type matters too, because certain agents are designed for liquids and will be effective on Class B fires (while others aren’t appropriate). Finally, you check that the contents are present and the unit is charged so it can actually discharge when needed. A purchase date doesn’t tell you whether the extinguisher can handle Class B fires or whether it’s still ready to use, and color or age of the building don’t indicate compatibility. The best verification combines the rating, the agent type, and a confirmed, intact contents check.