At higher temperatures, a test size of 31.47% was the final size obtained with a temperature range from 323.15 to 348.15 K. For the training set, the final range went from 293.15 to 318.2 K. The model response was not significantly affected by higher temperatures. As a result, the extrapolation at higher temperatures performed well with and without the isolating procedure. In Figure , the isolated points are shown and represent 21.57% from the original test size. For the interpolation study, a training size of 70 % was defined, resulting in a final size of 77.85 %. The test size temperature ranges from 318.0 to 323.15 K; the isolated results are shown in Figure .