Insoluble matter in H2O................................................................... 0,01 %

Residue on ignition (as SO4)........................................................... 0,05 %

Acidity (as CH3COOH).................................................................... 0,01 %

Chloride (Cl).................................................................................. 0,005 %

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

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

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

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

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