Apparatus for determining the carbon dioxide content of a liquid, especially a beverage

摘要

An apparatus for measuring the carbon dioxide content of fluids, especially beer, is described in which there are two pistons disposed on either side of an expansion chamber, the pistons being in cylinders of different displacement volumes, the pistons being displaceable axially together to effect expansion whereby equilibrium between carbon dioxide in gas and in fluid is established thereby permitting, via pressure measurements, a determination of the carbon dioxide content of a fluid sample.