| No | Item | Specification | Result |
| 1 | Assay(Na5P3O10)% | 94.0 min. | 94.7 |
| 2 | P2O5 % | 57.0 min. | 57.1 |
| 3 | Water insoluble substances% | 0.10 max. | 0.01 |
| 4 | PH(1% solution) | 9.2~10.0 | 10 |
| 5 | Bulk Density | 0.72~0.85 | 0.83 |
| 6 | Phase l | 20~40 | 36 |
| 7 | Iron(as Fe) ppm | 100 max. | 50 |
| 8 | Whiteness% | 90 min. | 92 |
