Complaint
| M | STANDARD | |
| Industrial Grade ( N. P. K compound fertilizer ) | Food Grade | |
| Main contents | ≥ 98% | ≥ 98% |
| Phophorus pentoxide | ≥ 61% | ≥ 61% |
| Nitrogen, as N | ≥ 11.8% | ≥ 11.8% |
| Water insoluble | ≤ 0.1% | ≤ 0.1% |
| Fluoride, as F | --- | ≤ 0.005% |
| Heavy Metals, as Pb | --- | ≤ 0.001% |
| PH Value of 1% solution | 4.4-4.8 | |
| Moisture | ≤ 0.2% | |
