Estimated total disk masses from z/r analysis, using varying carbon abundances, compared to literature values. Leftmost panel is an example and legend showing the Herbig system HD 163296. Black symbols correspond to the estimates done in this work from the characteristic z/r, where circles, diamonds, and squares have been calculated using the z/r–M_d relationship curves for ISM-like 10 and 100 values of volatile carbon depletion, respectively. For each disk, the available literature values of the total disk mass are shown in colored crosses, depending on the methodology used for their calculation and grey triangles and shaded areas for the HD upper limits and mass range values, respectively. The center and rightmost panels show the results for the full T Tauri and Herbig samples.