Measurements of the oxidation reduction
potential (ORP) averaged 279 mV during Test 1, with a maximum of 288 mV in the post-ozone sample.
potential (ORP)--A measure of the oxidizing or reducing properties of solutions.
These factors are the Eh (electrical potential) or ORP (oxidation reduction
potential), pH (acidity) and (electrical resistivity).
Liquid analytical instruments are widely used in several applications such as the measurement of potential of hydrogen, oxidation reduction
potential, dissolved oxygen, and conductivity/resistivity of a liquid.
The addition of NaOH solution also facilitates hydrolysis and oxidation reduction
process that is why optimum concentration of NaOH was investigated for this cell.
The new instruments offer pH, conductivity, TDS (total dissolved solids) and temperature measurement, along with combinations of resistivity, mineral/salt concentration and ORP (oxidation reduction
potential) measurement and are priced from $300 up to $1,800.
now mandates oxidation reduction
potential controllers on all commercial spas," Harsanyi said.
The Pentrode can measure pH, mV, Conductivity, Total Dissolved Solids (TDS), salinity, resistivity, and Oxidation Reduction
Potential (ORP) as relative mV or correlated to the Standard Hydrogen Electrode (EH), and temperature.
"In order to moderate the amount of ozone released to the exhibit, I purchased oxidation reduction
potential (ORP) meters from Cole-Parmer," Proitte says.