| Results | Limits | |
| Assay (Ignited basis): | 99.8% | 99.0-100.5% |
| pH (5% solution at 25°C): | 6.6 | 5.0 - 9.2 |
| Heavy metals: | <10 ppm | 10 ppm max. |
| Chloride: | 0.01% | 0.014% max. |
| Iron: | <10 ppm | 20 ppm max. |
| Loss on drying: | 0.2% | 2.0% max. |
| Selenium: | <30 ppm | 30 ppm max. |
| Organic volatile impurities: | none | meets requirements |
| Identification: | passes |