A professional who measures and records volume of carbon dioxide in storage tanks during carbonation of beer, and purity of carbon dioxide present in beer after fermentation. Respnsibilities include:

• Connects test apparatus to tank test cocks on storage tanks during carbonation of beer.
• Reads electronic meter on test apparatus and records meter readings that indicate volume of carbon dioxide, or amount of carbonation, present in beer.
• Observes calibrated tube of testing instrument attached to tank test cocks after fermentation of beer, and records readings that indicate percentage of oxygen or purity in carbon dioxide content of beer.