Deck General · Extinguishing Agents
Which portable fire extinguisher rating and type is suitable for use on Class A, B, AND C fires?
- ACO2 extinguisher rated BC
- BWater extinguisher rated 2A
- CABC dry chemical extinguisher✓ Correct
- DWet chemical extinguisher rated K
Explanation
ABC multipurpose dry chemical extinguishers (charged with monoammonium phosphate) carry ratings for all three common fire classes: A (ordinary combustibles), B (flammable liquids), and C (energized electrical). CO2 is rated BC only. Water extinguishers are rated only for Class A. Wet chemical extinguishers are designed for Class K (cooking oils) and may have a Class A rating but are not rated C.
Authority: NFPA
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