The carbon dioxide content is an essential quality characteristic. Furthermore, it is responsible for the taste and a better drinking incentive of the special product. To measure the CO2 in a PET- Bottle the instruments so far introduced in the market use the manometric determination of the partial pressure. For this procedure the bottle inevitably must be always pierced. In addition, you must either take a sample that must be made available in a separate measuring chamber or the pressure measurement must be realised directly at the bottle. Then the temperature measurement takes place using an appropriate thermometer directly in the bottle.
The LABCO measuring instrument will suit your purpose of an exact and non-destructive determination of the CO2 contents in bottled beverages (Headspace method). Via modern laser technology the LABCO measuring instrument offers the possibilities of determining the CO2 concentration within the shortest time without piercing the bottle. For this determination it is necessary to know the partial pressure of the CO2 and in addition the temperature of the beverage. By the use of quantitative IR - spectroscopic methods you ( LABCO ) succeed in determining the partial pressure and the temperature (pyrometrically) without destroying the bottle.