Assay (Acidim.)......................................................................96,0-102,0%

pH of 5% solution.......................................................................... 3,8-4,4

Insoluble matter in H2O................................................................... 0,02 %

Chloride (Cl).................................................................................. 0,003 %

Nitrate (NO3).................................................................................. 0,005 %

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

As............................................................................................... 0,0001 %

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

Fe.................................................................................................. 0,003 %

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

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