Test item | Normal type | Light type | |
Identification | Passes test | Passes test | |
Content, on the ignited basis | ≥ | 90.0 % | --- |
Assay(as Ca) | --- | 34.0-40.0 % | |
Content(P2O5), on the anhydrous basis | 38.5-48.0 % | 38.5-48.0 % | |
Loss on ignition (800°C±25°C, 0.5 hour) | ≤ | 8.0 % | 8.0 % |
Moisture | ≤ | --- | 3.0 % |
Arsenic | ≤ | 1.0 mg/kg | 3.0 mg/kg |
Fluoride | ≤ | 50.0 mg/kg | 50.0 mg/kg |
Lead | ≤ | 1.0 mg/kg | 1.0 mg/kg |
Cadmium | ≤ | 1.0 mg/kg | 1.0 mg/kg |
Mercury | ≤ | 1.0 mg/kg | 1.0 mg/kg |
Aluminium | ≤ | --- | 200 mg/kg |
Particle size | 325 mesh | D50 3-5 microns | |
Bulk density | --- | 0.15-0.35 g/ml |