Which CL17 reagent bottle does the DPD compound get mixed into?
Proper CL17 reagent procedure
The CL17 has two different reagent kits available which determine the species of chlorine that the instrument will measure (Free or Total chlorine). A complete reagent set consists of a Buffer solution, an Indicator Solution, and a bottle of DPD compound powder. It is necessary to dissove the DPD compound powder in the Indicator Solution