Oxycon Chlor (Start, DPD 1a & 1b, 2, each 1x 45ml) Reagent kit for 200 determinations of free-, total- and bound-chlorine Specifications 1x Oxycon Start 1x Oxycon DPD 1a+1b 1x Oxycon 2 Contact us to place an order. Related Products Sodium standard solution 1000ppm, 100ml Reagent set Oxycon Online Silica Calibration solution pH9 1000ml Cation exchanger – bottle; 1 litre, full