Minimum assay (Compl.)................................................................ 99,0 %

MAX. IMPURITIES

Insoluble matter in H2SO4............................................................... 0,01 %

Alkalinity............................................................................................... p/t.

Sulphur compounds (as SO4)......................................................... 0,01 %

Chloride (Cl).................................................................................. 0,001 %

Nitrate (NO3).................................................................................. 0,002 %

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

Ca................................................................................................. 0,005 %

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

Co............................................................................................... 0,0005 %

Cu............................................................................................... 0,0005 %

Fe................................................................................................ 0,0005 %

K................................................................................................... 0,005 %

Mg................................................................................................ 0,005 %

Mn.............................................................................................. 0,0005 %

Na................................................................................................. 0,005 %

Ni................................................................................................ 0,0005 %

Pb................................................................................................. 0,005 %