指标名称 /Index | 食品级/Food Grade | 工业级/Tech Grade |
含量(以CO(NH2)2H3PO4计)/ Content(asCO(NH2)2H3PO44)%%≥ | 98.0 | 98.0 |
五氧化二磷/ Phosphorus pentoxide(P2O5)%≥ | 44.0 | 44.0 |
总氮/ Nitrogen(as N)%≥ | 17.0 | 17.0 |
水份/ Moisture%≤ | 3 | 3 |
重金属/ Heavy metal(Pb)%≤ | 0.001 | - |
砷/ Arsenic(As)%≤ | 0.0003 | - |
氟化物/ Fluoride(F)%≤ | 0.001 | - |
水不溶物/ Water-insoluble%≤ | 0.10 | 0.10 |
PH值 / PH value | 1.6-2.0 | 1.6-2.0 |