| Results | Limits | |
| Assay: | 100.5% as Ni(C2H3O2)2·4H2O | 97.0% min. |
| Insoluble Matter: | <0.003% | 0.005% max. |
| Chloride: | <0.001% | 0.003% max. |
| Iron: | 0.0002% | 0.005% max. |
| Lead: | <0.0001% | 0.005% max. |
| Zinc: | 0.0008% | 0.02% max. |
| Cobalt: | 0.008% | 0.5% max. |
| Sulfate: | <0.001% | 0.005% max. |
| Nitrate: | <0.001% | 0.008% max. |
| Sodium: | <0.001% | 0.1% max. |
| Potassium: | <0.0001% | 0.02% max. |
| Calcium: | <0.0001% | 0.01% max. |