3N 1.TeO299.9% 2.Impurity Max each Pb/Sb/Cu/Zn/Al/Bi0.003%, Ag/Mg/Ni0.001%, Ca0.005%, Fe0.015%, Cd/Si/Se0.002% 3.Size -200, -325mesh 4N 1.TeO299.99% 2.Impurity Max each Mg/Sb/Al/Bi/Si/Se/Ni5ppm, Pb/Cd 8ppm, Cu/Zn/Ca/Fe 10ppm, Ag6ppm 3.Size -200, -325mesh 5N 1.TeO299.999% 2.Impurity Max each Mg/Al/Bi/Cu/Ni/Si/Se0.5ppm, Pb/Sb/Ag/Ca/Fe1ppm 3.Size -200, -325mesh Packing 2kgs in polyethylene bottle with sealed plastic bag outside
