II.
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°C)g/cm3 1.31-1.35
Colour APHA (Hazen) 30.0max
Ca Se (mg CaCO3/g) 450.0 min