| TESTING ITEMS | SPECIFICATION | RESULTS |
| Description | White powdery solid | Conforms |
| Active component (As HEDP) | ≥89.0% | 90.1% |
| Active component (As HEDP H2O) | ≥98.0% | 99.0% |
| Phosphoric acid | ≤0.8% | 0.3% |
| Chloride (As Cl) | ≤0.01% | 0.004% |
| PH value | 1.5~2.5 | 2.0 |
| Iron (As Fe) | ≤5mg/L | 1mg/L |
| Conclusion: The Product Conforms to Enterprise Standard. |
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