Phosphate Test Kit Hanna HI 3833 Deskripsi Method : Colourimetric Range : 0-5 mg/L Smallest Increment : 1 mg/L Chemical Method : Ascorbic acid Number of Tests : 50 Order information The HI-3833 test kit is supplied with the following; 20 mL plastic beaker, colour comparison cube and 50 packets phosphate reagent.