Redox (ORP) Buffer solution from WTW

This 427 mV ORP standard (pH = 7) acts as a control or reference material, rather than as a calibration standard. This is because Redox Oxidation/Reduction (ORP) is an absolute measurement and the sensing electrode does not require calibration. with a pH value of 7, it can double as a pH buffer.

The standard controls the functionality of the sensing and reference electrode, the analysts technique, environmental conditions, and the operation of the measuring meter. This standard has a long shelf life. The value of 427 mV refers to the potentials of the metal electrode versus the reference electrode (often Ag/AgCl with 3 mol/L KCl reference electrolyte).

Specifications

• Potential: 427 mV (25 °C)
• pH value: 7
• Volume: 250 mL