For determination of Free and Total Chlorine by the DPD method, using visual test kits. Set contains: DPD Free Chlorine PP, pk/100 and DPD Total Chlorine PP pk/100,. Range: 0 - 3.5 mg/L as CI2. Sample Size: 5 mL. *This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.