| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | Odorless, insipid and black crystals | Conforms |
| Manganese (Mn) | ≤0.20% | <0.20% |
| Iron (Fe) | ≤0.10% | <0.10% |
| Nickel(Ni) | ≤0.30% | <0.30% |
| Zinc (Zn) | ≤0.10% | <0.10% |
| Heavy metals(Cu) | ≤0.20% | <0.20% |
| Lead (Pb) | ≤0.006% | <0.006% |
| Assay(As Co) | ≥71.0% | 71.32% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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