The oxidation kinetics of only a very limited number of pure metals or binary alloys can be described by the simplest parabolic law, Δm2=kpt, Thus for a transient period of faster kinetics, the steady state parabolic law is given by (Δm−Δmi)2 = kp(t−ti) when the initial weight gain Δmi does not contribute to steady state rate control. In such a case, a plot of the kinetics data as Δm vs t1/2 is inherently superior to the Δm2 vs t plot for an accurate determination of the steady state parabolic rate constant, as well as for the analysis of the transient, faster kinetics.