Fig. 5. Differential polarizability vs. time for (a) quartz–water–air (QWA) and (b) quartz–water–kerosene (QWK) samples for different volumetric water contents. Numbers on the graphs show the values of volumetric water content. Each curve is plotted on the basis of 59 data points evenly spaced on log scale. Note the similarity of relationships for QWA and QWK samples.