Due to the aforementioned reasons the density of the main hydrogenated products was also above the value of the valid standard (Fig. 15). The density of the hydrogenated main products decreased as an effect of the triglyceride conversion and the aromatic saturation, but above 360 C it correlated with the aromatic content, because of the high density of the aromatic compounds. This correlation to the aromatic content can be observed in the change of the product viscosity, too, (Fig. 14).