formula : Ca(H2PO4)2*2H2O
| NO. | ITEM | UNIT | STANDARD | TEST RESULT | DETERMINANT |
| 1 | P | % | ≥21.0 | 21.3 | PASS |
| 2 | F | % | ≤0.18 | 0.12 | PASS |
| 3 | Ca | % | ≥13.0 | 18 | PASS |
| 4 | ARSENIC | % | ≤0.003 | 0.0013 | PASS |
| 5 | Pb | % | ≤0.003 | 0.002 | PASS |
| 6 | H2O | % | ≤4.0 | 3.5 | PASS |
| 7 | PH | ≥3 | 3.01 | PASS | |
| 8 | fineness | % | ≥ 95 | 95.5 | PASS |
| Size | 10-60 mesh |