"Min. assay 99% Wt. per ml at 20oC 1.462-1.466g Maximum Limits of Impurities : Acidity 0.2 ml N/1% Nonvolatile matter 0.004% Free Chlorine(CI) 0.001% (Keep container tightly closed. Harmful Vapour Avoid breathing vapour When this material be provided or an efficient respirator must be worn.)"