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Table VI

Models developed for powders and used for prediction purposes on the Longitudinal-Radial surface spectra of solid samples. N: number of sample. M: mean. SD: standard deviation. SEP: standard error of prediction. RPD: ratio performance to deviation.

Properties N Outliers Means SD SEP r 2 RPD
Radial shrinkage 393 11 3.14 0.68 0.43 0.63 1.6
Tangential shrinkage 393 19 5.57 1.24 0.77 0.72 1.6
Fibre saturation point 393 19 20.37 1.77 0.78 0.81 2.3