Hanna ORP Test Solution at 470 mV @ 25°C/77°F) 1 x 500 mL bottle - HI7022L

HI7022L ORP Test Solution at 470 mV @ 25°C/77°F) 1 x 500 mL Bottle by Hanna Instruments

ORP standard solutions allow you to test the precision of ORP electrodes. For example, by immersing the electrode in HI 7022 solution, you should read 470 mV @ 25°C/77°F.

If the reading is outside the indicated interval, clean and condition your ORP electrode in HANNA® pretreatment solution. Use HI 7092 for oxidizing or HI 7091 for reducing pretreatment.