The Fire Rate is made up of "Numbers" and "Letters". The "Numbers" mean the size of fires, The "Letters" means the type of fires.
According to European Standard, the type of fires are A, B, C, D, E, F. Please check the following informations:
| Fire Types | Description of Fires | Fire Class | Suitable Fire Extinguishers | |
| Combustible materials | Such as woods, papers, furs, fabrics, refuses | A | Dry Powder, Foam, wet chemical , water fire extinguishers |  |
| Flammable liquids | Such as Gasoline, kerosene, methanol, ether, acetone | B | Foam, Co2, dry powder fire extinguishers |  |
| Flammable gas | Such as Gas, liquefied petroleum gas, methane | C | Dry Powder fire extinguishers |  |
| Flammable metals | Such as kalium(Potassium), sodium | D | Dry Powder fire extinguishers |  |
| Electrical fires | Such as Electrical apparatus | E | Co2, Dry powder fire extinguishers, |  |
| Cooking oils and fats | Such as Kitchen | F(class K) | Wet chemical fire extinguishers |  |