Fertilizer Standards of Straight Fertilizers and accepted heavy metal contents in a compound fertilizers.
|Urea||Chemical composition of the fertilizer
a.) Nitrogen Content (Min.)
b.) Biuret Content (Max)
46.0% (on dry basis)
|TSP||Chemical composition of the fertilizer
a.) Total P, as P2O5, % by mass, Min.
b.) Water soluble P, as P2O5, % by mass, Min.(of total P)
c.) Free Phosphoric acid as, P2O5, % by mass, Max.
d.) Arsenic as As mg/kg, Max
e.) Cadmium as Cd mg/kg, Max
f.) Lead as Pb mg/kg, Max
g.) Chromium as Cr mg/kg, Max
h.) Mercury as Hg mg/kg, Max
80.0%3.0 %25 ppm
|MOP||Chemical composition of the fertilizer
|Chemical composition of the fertilizer