Focus On

Focus Ons are a series of technical articles. If you can’t see what you are interested in please type a keyword in the search box.

DPD Vials

Calibrating Sensors Using a DPD Kit

You probably know that most chlorine, ozone and chlorine dioxide analyzers are calibrated using hand held DPD kits but did you know that… …DPD can’t

Swimming Pool

ppm Chlorine vs. ORP measurement

You probably know that some instruments use ORP to control chlorine dosing and others use ppm chlorine sensors but did you know that… …ORP over about


UV254 Analyzers

You probably know that UV254 analyzers are used to determine the power needed by UV disinfection systems to satisfactorily disinfect water but did you know


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