| ITEMS | SPECIFICATIONS | RESULTS | JUDGEMENT |
| Assay (on the dried basis) | 97.0%~101.0% | 98.24% | Conforms |
| Loss on drying (105ºC,16h) | ≤1.0% | 0.11% | Conforms |
| Sulfate | ≤0.2% | <0.2% | Conforms |
| Iron(Ferric) | ≤2.0% | <2.0% | Conforms |
| Lead | ≤10ppm | <2ppm | Conforms |
| Arsenic | ≤3ppm | <3ppm | Conforms |
| Mercury | ≤3ppm | <3ppm | Conforms |
| Organic volatile impurities | Meets the requirements | Meets the requirements | Conforms |