| Testing Items | Specifications | Results |
| Appearance | White or white crystalline powder | Conforms |
| Transmittance | ≥98.0% | 99.02% |
| Chloride(Cl) | ≤0.02% | <0.02% |
| Sulfate(SO4) | ≤0.02% | <0.02% |
| Ammonium salt | ≤0.02% | <0.02% |
| Iron(Fe) | ≤0.001% | <0.001% |
| Heavy metal(Pb) | ≤10ppm | <10ppm |
| Loss on drying | ≤0.20% | 0.15% |
| Residue on ignition | ≤0.20% | 0.08% |
| Arsenic (As) | ≤1ppm | <1ppm |
| PH | 5.4~6.0 | 5.5 |
| Assay | 98.5%~101.5% | 99.0% |
| Conclusion: The Product Conforms to USP/AJI. |
||
