| Items | Specification | Results |
| Colour and Lustre | Yellow or yellow-green | Conforms |
| State | Liquid | Conforms |
| Odor | In very dilute solution with strong butter aroma | Conforms |
| Content | 99.0% min | 99.7% |
| Refractive index | 1.3920~1.3980 | 1.3945 |
| Relative density | 0.978~0.988 | 0.9800 |
