1 Total phosphate, as P2O5%≥ 68.0 68.0
2 Inactive phosphate, as P2O5%≤ 7.5 7.5
3 Iron, as Fe %≤ 0.05 0.05
4 pH value (1% solution) %≤ 5.8-7.3 5.8-6.5
5 Solubility Qualified Qualified
6 Heavy metals, as Pb %≤ 0.001
7 Arsenic, as As%≤ 0.0003
8 Fluoride as F%≤ 0.003
9 Water insoluble %≤ 0.05 0.06
Packaging: Plastic-woven sack with inner polythene film; Net weight at 25kg, 50kg or 1, 000kg. Store at a well ventilated, dry place.