| Item | specification | test result |
| Purity%≥ | 99.9 | 99.97 |
| Methanol,% ≤ | 0.0010 | 0.0008 |
| Chromaticity (in Hazen) (Pt-Co),≤ | 5 | 5 |
| Moisture,% ≤ | 0.050 | 0.0065 |
| Iron (as Fe)(mg/kg) , ≤ | 0.050 | 0.03 |
| Acidity(as formic acid),% ≤ | 0.0010 | 0.0005 |
| Alkalinity (as dimethylamine),% ≤ | 0.0010 | 0.0004 |