Name of index	Index	Actual index
Total phosphate (P2O5)    %	≥68	68.2
Substances not dissolved in water %	≤0.06	0.04
Non-active phosphates (P2O5)    %	≤7.5	6.8
Fe %	≤0.05	<0.05
PH value(1% of solution)	5.8-6.5-	6.2
As	≤0.0003	<0.003
Heavy metal (Pb)	≤0.001	<0.001
Fluorides (F)	≤0.003	<0.003
Appearance	White powder	Measure up