| Items for detecting and analyzing | Standard Result | Results of inspecting |
| Main Contents (As NaH2PO4.2H2O ) %≥ | 98.0 | 98.16 |
| Phosphorus Pentoxide (As P2O5) %≥ | 44.6 | 44.82 |
| Water Insoluble %≤ | 0.2 | 0.02 |
| Chloride (As Cl) %≤ | 0.05 | ﹤0.05 |
| Fe %≤ | 0.05 | ﹤0.04 |
| So4 %≤ | 0.3 | 0.2 |
| Heavy metals (As Pb) %≤ | 0.005 | 0.003 |
| PH | 4.2-4.6 | 4.5 |
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