| Item | Standard | Result |
| Co | 72% min | 72.57% |
| Ni | 0.03% max | 0.0013% |
| Fe | 0.05% max | 0.0081% |
| Cu | 0.01% max | 0.0008 % |
| Mn | 0.01% max | 0.0011% |
| Zn | 0.01% max | 0.0005 % |
| Ca | 0.015% max | 0.0061% |
| Mg | 0.1% max | 0.0034% |
| Na | 0.08% max | 0.054% |
| Pb | 0.005% max | 0.0003% |
| Cd | 0.003% max | 0.0004% |
| Size(pass 400mesh) | 98% min pass | Qulified |
