Minimum assay (Acidim.)............................................................... 98,0 %

MAX. IMPURITIES

Insoluble matter in HCl................................................................. 0,005 %

Carbonate (as BaCO3)...................................................................... 2,0 %

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

Sulphide (S).................................................................................. 0,001 %

Heavy metals (as Pb).................................................................. 0,0005 %

Ca................................................................................................... 0,05 %

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

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

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

Na................................................................................................... 0,01 %

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

Pb............................................................................................... 0,0005 %

Sr...................................................................................................... 0,8 %