Redox Standards

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Thermo Orion® pH Specialty Solutions and ORP Standards

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).

  • Does not contain hazardous chemicals
  • 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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967901 +220mV/+420mV (Ag/AgCl)475mL
Your Price: $50.40
List Price: $62.80
967961 +220mV/+420mV (Ag/AgCl)5 x 60mL
Your Price: $76.88
List Price: $88.70