Class A - ordinary combustibles, such as wood, cloth, paper, and rubber
- Class B - flammable liquids, such as gasoline, oil, solvents, oil and based paints
- Class C - energized electrical equipment, such as wiring, fuse boxes, appliances
- Class D - combustible metals, such as magnesium
- Class K - Animal/vegetable fats and oils
Fire extinguishers can be multipurpose (ABC)
