Measure ORP simply and accurately with Thermo Scientific™ Orion™ ORP Standards for Redox/ORP Electrodes. Orion OPR standards are stable for up to a year (unopened) and can be used directly from the bottle with no mixing or diluting.Orion OPR standards are designed for use with gel-filled ORP/ATC Triode™ electrodes (9179BNMD and 9179BN); refillable ORP/ATC Triode electrodes (9180BNMD and 9180BN); glass-bodied ORP electrodes, (9778BNWP and 9778SC); and Sure-Flow™ ORP electrodes, (9678BNWP and 967800).
- Included in the new ASTM ORP method
- Used as relative mV standard to calibrate the offset of sample
- +220mV vs. Ag/AgCl using 4M KCl saturated with AgCl filling solution (Part No. 900011), +420mV vs. Standard Hydrogen Electrode (EH)
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