Liquid Reagent Turns Yellow in Presence of Chlorine
posted by Water Testing Blog on Tuesday, January 31st 2012 under: Chlorine, Chlorine Testing, Combined Chlorine, DPD, Free Chlorine, Home Water Test Kits, Home Water Testing, Testing Devices, Total Chlorine, Water Test Kit, Water Testing Tags: Chlorine Testing, DPD, Orthotolidine dihydrochloride, oto, oto and water testing, pool water testing, sensafe free chlorine test strip, what is oto