Assay (alkalimetric): 64.3 - 66.4 %

Identity: passes test

Appearance of solution: passes test

Chloride (Cl): ≤ 0.0003 %

Iodate, Bromate: passes test

Nitrogen oxides (as N₂O₃): ≤ 0.003 %

Sulfate (SO₄): ≤ 0.001 %

Heavy metals (as Pb): ≤ 0.0005 %

As (Arsenic): ≤ 0.0001 %

Ca (Calcium): ≤ 0.001 %

Fe (Iron): ≤ 0.0004 %

NH₄ (Ammonium): ≤ 0.001 %

Residual solvents (ICH Q3C): ...excluded by production process

Evaporation residue: ≤ 0.01

Date of expiry: see product label