The application of the maximum bubble pressure tensiometry at short adsorption times (below 0.5 s) is complicated by the two effects aerodynamic resistance of the capillary and viscosity of the studied liquid. A procedure is shown that demonstrates how the two effects can be taken into consideration to obtain correct dynamic surface tensions. The parameters are determined for a commercial steel capillary of 0.25-mm diameter and 60-mm length. The correction procedure, in turn, can even be used to estimate the viscosity of the liquid under investigation in case it is unknown.