| Class | Symbol | Type of Fire and Examples | Extinguisher Choice |
| A | ![]() |
Common Combustibles: wood, paper, cloth,
etc. Deep seated states of materials most difficult Proper agent to "Hot Spot" Thorough overhaul of material necessary |
Class A |
| B | ![]() |
Flammable liquids and gases: gasoline, propane
and solvents Spill fires Obstacle fires Fuel-in-depth fires Gravity/3-dimensional fires Pressure fires |
Class AB |
| C | ![]() |
Live electrical equipment: Computers, fax
machines Energized electrical situations |
Class ABC |
| D | ![]() |
Combustible metals: Magnesium, lithium, and
titanium Flammable metals |
Class D |
| K | ![]() |
Cooking Media: Cooking oils and fats | Class AK |









