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

MAX. IMPURITIES

Insoluble matter in H2O................................................................. 0,005 %

Carbonate (as Na2CO3)..................................................................... 0,2 %

Iodine-reducing substances (as I).................................................. 0,05 %

Chloride (Cl).................................................................................... 0,01 %

Sulphate (SO4)................................................................................ 0,01 %

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

Ammonium (NH4).......................................................................... 0,002 %

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

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

Fe................................................................................................ 0,0002 %

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

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