Reagents for Poollab 1.0, 2.0 & PoolWaterLAB - DPD N° 3 for Testing Chlorine (Combined/Total) and Ozone 50 Tablets

 Chlorine Free | 0.0 - 8.0 mg/l (ppm) | reagent for measurements - DPD N° 3. Shelf life tablet reagents 2 years. ( TbsPD350 ) Chlorine (in the form of sodium hypochlorite, calcium hypochlorite, chlorine gas, chlorinated isocyanurates,...) has become the leading disinfectant for swimming and bathing pool water worldwide. When measuring the chlorine concentration present in the water, a distinction is made between 3 partial values according to DIN EN 7393. 1 Free chlorine: Chlorine present as hypochlorous acid, hypochlorite ion or as dissolved elemental chlorine. 2. Combined chlorine: Proportion of total chlorine present in the form of chloramines and all chlorinated derivatives of organic nitrogen compounds. 3. Total chlorine: Sum of the former two forms. While free chlorine is immediately available for disinfection action, the disinfection potential of combined chlorine is severely limited. The chloramines are responsible for the typical indoor pool odor and the irritation of human muc