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Residual chlorine test paper 25, 50, 100, 200 ppm 1 bottle (200 sheets) AS J-QUNAT 25-200 1 bottle (200 sheets)
Residual chlorine test paper 25, 50, 100, 200 ppm 1 bottle (200 sheets) AS J-QUNAT 25-200 1 bottle (200 sheets)
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The amount of hypochlorous acid (HClO) and hypochlorite ion (ClO-) in aqueous solution can be measured by oxidation-reduction reaction. Measurement range and scale (ppm): 25, 50, 100, 200 (200 sheets included)
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