Items index standard Appearance clear, colorless to pale yellow aqueous solution Active acid % 50.0-51.0 Chloride (as cl-)% 1.0max Ph value (1% solution) 2.0 max Fe mg/l 10.0max Density (20)g/cm3 1.31-1.35 Colour apha (hazen) 30.0max Ca sequestration (mg caco3/g) 450.0 min.
