Assay 38-42% Residue <0.001%
Colour <10 Hazen (APHA)
Co, Cu, Mn, Sr <0.02 ppm each
As, Ba, Cd, Mo, Ni, Pb <0.05 ppm each
Al, Cr <0.1 ppm each
K, Mg, Zn <0.5 ppm each
Ca, Fe, Se <1 ppm each
Na <5 ppm
Cl <1 ppm
SO4 <3 ppm
NO3 <5 ppm
SiF6 <50 ppm