| Testing Items | Specifications | Results |
| Appearance | White crystals or crystalline powder | Conforms |
| Identification | Positive | Positive |
| Appearance of solution | Conforms | Conforms |
| PH | 9.0~9.6 | 9.2 |
| Ammonium | ≤0.001% | ＜0.001% |
| Magnesium and alkali metals | ≤0.0005% | ＜0.0005% |
| Aluminum | ≤0.01% | ＜0.01% |
| Sulfate | ≤0.005% | ＜0.005% |
| Heavy metal | ≤25ppm | ＜25ppm |
| Assay | 99.0%~103.0% | 99.8% |
| Conclusion: The Product Conforms to BP. |
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