| Results | Limits | |
| Assay: | 100.64% as Mn(C2H3O2)2·4H2O | 98.0%-101.0% |
| Insoluble Matter: | <0.0005% | 0.005% max. |
| Heavy Metals (as Pb): | <0.001% | 0.001% max. |
| Iron: | 2 ppm | 10 ppm max. |
| Chloride: | 4 ppm | 10 ppm max. |
| Sulfate: | 20 ppm | 40 ppm max. |
| Nickel: | 1 ppm | 10 ppm max. |
| Copper: | 1 ppm | 5 ppm max. |