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| ITEMS | STANDARDs |
| Assay (%) (Na5P3O10) | 94%MIN |
| Appearance | WHITE GRANULAR |
| P2O5 (%) | 57.0 MIN |
| Bulk density | 0.4~0.6 |
| Iron | 0.15%MAX |
| Temperature rise | 8~10 |
| Polyphosphate | 0.5 MAX |
| PH value(%) | 9.2 - 10.0 |
| Ignition loss | 1.0% MAX |
| 20mesh through | >90% |