Minimum assay (Perm.).................................................................. 95,0 %

MAX. IMPURITIES

Nitrogen compounds (as N)......................................................... 0,003 %

Chloride (Cl).................................................................................. 0,002 %

Phosphate (PO4)........................................................................... 0,002 %

Sulphate (SO4).............................................................................. 0,005 %

Heavy metals (as Pb).................................................................... 0,002 %

Cd................................................................................................. 0,002 %

Co................................................................................................. 0,002 %

Cr.................................................................................................. 0,002 %

Cu................................................................................................. 0,002 %

Fe.................................................................................................. 0,002 %

K..................................................................................................... 0,05 %

Ni.................................................................................................. 0,002 %

Pb................................................................................................. 0,002 %

Zn................................................................................................. 0,005 %