Quality specifications
| Item of tests | FAO/WHO quality specification |
appearance |
Red or light red oiliness |
acidity ( mgKOH/g) |
≤2.8 |
lead |
≤10ppm |
Heavy metal（pb） |
≤40 ppm |
arsenic(As) |
≤0.0003 |
ash |
≤0.1% |
Specific rotation [α]D20° |
≥+24° |