600 mV ORP Calibration Solution

The 600 mV ORP Standard Solution is the certified reference standard for calibrating ORP (oxidation-reduction potential) meters, ORP electrodes, and combination pH/ORP instruments. This 600 mV solution is the most widely used ORP calibration reference, covering the oxidising range appropriate for pool and spa sanitation monitoring, drinking water disinfection, aquaculture, wastewater treatment, food processing, and laboratory analytical work.