Fig. (10) Standardized Kt/V versus Gotch's Kt/V. There are two sets of curves with fixed const/T values. In the first set (Var V) t=2.5 h, K=259.289 ml/min and V is varied. In the second set (Var K) t=8 h, V=40.6 L and K is varied. The spread between the two sets of lines increases as t/T increases (compare with Fig. 1) and as Kt/V increases. It should be noted that the Var V and Var K curves are only dependent on const/T and t/T; in other respects they are the same.