ORP Test Solution at 470 mV @ 25 Degrees C, 230 mL Bottle, Hanna Instruments, HI7022M

Hanna Instruments ORP Test Solution at 470 mV @ 25 Degrees C, 230 mL Bottle, HI7022M

HI 7022M is an ORP test solution at 470 mV (@ 25ºC that allows testing of the precision of ORP electrodes.  If the reading is outside the indicated interval of ±50 mV of the 470 mV value, the electrode should be cleaned and conditioned with either the Hanna® oxidizing or reducing pretreatment solution.  This test solution is formulated for testing platinum and gold ORP electrodes.This ORP standard is supplied in a 230 mL air tight bottle with a tamper-proof seal. A certificate of analysis which includes product code, lot number, and expiration date is provided. The test solutions are produced in a state-of-the-art manufacturing facility using reagent grade chemicals in a temperature controlled environment.