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222mV ORP Standard Solution is for checking and treatment of ORP electrodes. To check the function of the electrode, immerse the tip in the ORP standard solution. The mV reading should be +/- 15 mV from the value indicated on the bottle (at your temperature). If the reading is not within the +/- 15 mV, or the reading of your sample is not within a normal range, soak the electrode in this standard solution for 15-30 minutes for treatment. It will prepare the electrode's surface for measurement and speed up the electrode response time.

222mV ORP Standard Solution 8oz. for Checking and Treatment of ORP Electrodes

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