Minimum assay (a.d.s.)................................................................... 99,0 %

MAX. IMPURITIES

Insoluble matter in H2O................................................................... 0,01 %

Loss on drying at 150°C.........................................................13,0-15,0 %

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

Nitrate (NO3).................................................................................. 0,001 %

Ammonium (NH4).......................................................................... 0,005 %

Heavy metals (as Pb).................................................................... 0,001 %

Ca................................................................................................... 0,01 %

Cu................................................................................................. 0,001 %

Fe.................................................................................................. 0,001 %

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

Mg.................................................................................................. 0,01 %

Na................................................................................................... 0,05 %

Ni.................................................................................................. 0,001 %

Pb................................................................................................. 0,001 %