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suma de cloro elemental disuelto, hipoclorito, ácido hipocloroso, bromo elemental disuelto, hipobromito y ácido hipobrómico, medidos conjuntamente y expresados como cl2
the sum of dissolved elementary chlorine, hypochlorite, hypochlorous acid, dissolved elementary bromine, hypobromite, and hypobromic acid, measured together and expressed as cl2