The theoretical description of maximum bubble pressure experiments needs to consider inertial properties of the gas and liquid. On the basis of an analysis of the time-dependent pressure gradient inside the capillary, bubble lifetime and bubble deadtime are estimated. Numerical calculations of the derived model equations yield different importent dependencies which allow us to better understand bubble pressure experiments at high bubble frequencies: gas flow velocity as function of time, bubble radius as function of time, pressure drop within the capillary as function of time, and bubble lifetime as function of the initial gas velocity. Copyright 1998 Academic Press. Copyright 1998Academic Press