| TESTING ITEMS | SPECIFICATIONS | RESULTS |
| Appearance | Toast almond colored to cream colored powder | Conforms |
| Sodium Sulfate | ≤3.0% | 1.70% |
| Insoluble substance | ≤0.20% | 0.10% |
| Calcium and magneium | ≤0.40% | 0.08% |
| Fineness | ≤5.0% | 3.10% |
| PH value | 7.0~9.0 | 8.1 |
| Dispersing force | 100± 5% | 99.90% |
| Conclusion: The Product Conforms to Enterprise Standard. Chemical Name: Sodium Salt of Polynaphthalene Sulphonic Acid |
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