3. The appliance shall first be allocated to the appropriate category from the following list:
| Category | Description |
|---|---|
| 1 | Refrigerator without low temperature compartment (any compartment with a temperature at or below −6°C) |
| 2 | Refrigerator/chiller with compartment at 5°C and/or 12°C |
| 3 | Refrigerator with no-star low temperature compartment |
| 4 | Refrigerator with low temperature compartment (*) |
| 5 | Refrigerator with low temperature compartment (**) |
| 6 | Refrigerator with low temperature compartment (***) |
| 7 | Refrigerator/freezer, with freezer compartment (****) |
| 8 | Food freezer, upright |
| 9 | Food freezer, chest |
| 10 | Refrigerator/freezer with more than two doors, or other appliances not covered above |