| Method | Error (%) | Oil | Reference |
| Photoacoustic | 2 | Sunflower | [47] |
| 3 | Soybean | ||
|
Thermal analyser | 1 | Sunflower (21˚C) | [48] |
| 1,8 | Sunflower (68.7˚C) | ||
| 1.2 | Soybean (21˚C) |