Complaint
| Item | Requirement | Result |
| CuO | >=98% | >=99% |
| Cl | <=0.015% | <=0.005% |
| insoluble in HCl | <=0.15% | <=0.05% |
| SO42- | <=0.1% | <=0.01% |
| Fe | <=0.1% | <=0.01% |
| N | -- | <=0.005% |
| soluble in water | <=0.1% | <=0.01% |
| particle size | D50<10um | D50<10um |
