(under subclass 19.01) Subject matter wherein the substance whose gas content is being determined is a substance which exhibits a characteristic readiness to flow, little or no tendency to disperse, and relatively high incompressibility.
SEE OR SEARCH THIS CLASS, SUBCLASS:
19.06, for determining the gas content of a beverage by measuring the pressure of the gas.
53.01+, for testing of a liquid or liquid suspension of solids.