The CO2 Purity Tester is a special instrument which is for calculating the purity of CO2. The principle is based on absorption burette to measure the impurities (O2 and N2 e.g.) of CO2 in a mixture of gases. The CO2 Purity Tester is widely used in breweries, the laboratory measurement of CO2 recycling and purchasing.

Applications:

• Quality Control

  – of gas distribution systems

  – of commercial gas

  – of incoming CO₂ gas from fermentation

  – of CO₂ recovered and purified from fermentation

  – in front of the carbonator to monitor the gas quality dosed

• Optimizing CO₂ Recovery Plants

  – behind the activated carbon filter/dryer

  – in the purge from the CO₂ liquefier to control the blow-off quantity automatically, preventing CO₂ loss as well as high concentrations of O₂ from dissolving CO₂
  – behind the CO₂ evaporator to monitor O₂ in the CO₂ distribution system

Sources:

http://tudonghoatmp.com/uploads/files/AT2E/CO2-P%20CO2%20Purity%20Tester.pdf

https://foodandbeverage.pentair.com/en/products/haffmans-co2-purity-tester-cpt