Dpd Tablet Articles & Analysis
2 articles found
Normally, DPD 1 gives free chlorine Addition of DPD 3 (excess KI) gives free and combined chlorine (chloramine) Instead of DPD 3, DPD 2 is used (which has a trace of KI). This only reacts with monochloramine. So subtracting the DPD 1 result gives the level of monochloramine. DPD 2 part code ...
Following the installation of in-pipe drinking water quality monitoring sondes, distribution engineers discovered an occasional significant disparity between the Intellisondes’ data and results from grab samples tested by a photometer tablet (DPD) method. For most of the time, there was close agreement between the two methods, but periodically, the ...