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HANNA® ORP Test Solution at 200-275mV, 500 mL
HANNA® ORP Test Solution at 200-275mV, 500 mL Close ORP Test Solution Allows You to Test the Precision of ORP ElectrodesBy immersing the electrode in ORP Test Solution, you should read within the 200 to 275 mV range (@20°C/68°F). If the reading is outside the indicated interval, clean and condition your ORP electrode in pretreatment solution. 500 mL plastic bottle.
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