| 665.1 | Generalities on oils, fats, waxes and products derived from them |
| 665.2 | Oils, fats and waxes of animal origin |
| 665.3 | Vegetable oils, fats, waxes, phosphatides |
| 665.5 | Essential oils. Perfumery. Cosmetics |
| 665.6/.7 | Processes and products of the petroleum and allied industries |
| 665.9 | Miscellaneous organic chemical industries |
