| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Description | White or light yellow fine powder | Conforms |
| Solubility | Clear or pale yellow clear solution | Conforms |
| Loss on drying | ≤7.00% | 4.7% |
| Total sulfur content | 16.0%~20.0% | 18.5% |
| Free Sulfur | ≤0.2% | 0.05% |
| Chloride | ≤0.1% | 0.02% |
| PH(10% Solution Concentration) | 5.5~7.5 | 6.3 |
| O.D.(10% solution concentration, 510nm) | ≤0.05 | 0.0 |
| Conclusion: The Product Conforms to Enterprise Standard. |
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