| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | White or nearly white powder | Conforms |
| Sulfate(SO4) | ≤0.03% | <0.03% |
| Chloride(Cl) | ≤0.035% | <0.035% |
| Impurities | 4-Hydroxybenzoic Acid ≤4.0% | 1.15% |
| Other single impurities ≤0.5% | 0.10% | |
| Total other single impurities ≤1.0% | 0.20% | |
| Loss on drying | ≤5.0% | 3.23% |
| Lead (Pb) | ≤2ppm | 1ppm |
| PH | 9.5~10.5 | 9.8 |
| Assay | 99.0%~103.0% | 99.70% |
| Conclusion: The Product Conforms to Enterprise Standard. |
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