Assay (Acidim.)..................................................................................48 %

Density at 20/4.................................................................................≥ 1,49

Residue on ignition (as SO4)........................................................... 0,01 %

Chloride (Cl).................................................................................... 0,05 %

Phosphate (PO4)........................................................................... 0,001 %

Sulphate and Sulphite (as SO4)...................................................... 0,01 %

As............................................................................................. 0,00005 %

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

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

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

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

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

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