| No. | standard name | food grade |
| 1 | Main content(as NH4H2PO4)%≥ | 99.0 |
| 2 | Phosphorus pent-oxide(as P2O5)%≥ | 61.0 |
| 3 | Nitrogen(as N)%≥ | 11.8 |
| 4 | PH value | 4.4-4.8 |
| 5 | Moisture%≤ | 0.2 |
| 6 | Heavy metal(as Pb)%≤ | 0.001 |
| 7 | Arsenic(As)%≤ | 0.0003 |
| 8 | Fluoride(as F)%≤ | 0.005 |
| 9 | Water insoluble %≤ | 0.10 |
