Relative variations of the DTM (orange) and of the fraction of small grains f_s (magenta) for the given run as labelled on the x-axis with respect to the G10LG simulation, decreasing or increasing the coagulation rate (resp. G10LG_cS and G10LG_cF), decreasing or increasing the shattering rate (resp. G10LG_sS and G10LG_sF), increasing both the coagulation and the shattering rates (G10LG_csF), and reducing the SN dust destruction rates (G10LG_sn). Quantities are averaged from 300 to 400 Myr. Variations of the rates of these processes have little impact on the DTM, however, variations of coagulation and shattering rates can significantly affect the fraction of small grains. Relative variations of the DTM (orange) and of the fraction of small grains f_s (magenta) for the given run as labelled on the x-axis with respect to the G10LG simulation, decreasing or increasing the coagulation rate (resp. G10LG_cS and G10LG_cF), decreasing or increasing the shattering rate (resp. G10LG_sS and G10LG_sF), increasing both the coagulation and the shattering rates (G10LG_csF), and reducing the SN dust destruction rates (G10LG_sn). Quantities are averaged from 300 to 400 Myr. Variations of the rates of these processes have little impact on the DTM, however, variations of coagulation and shattering rates can significantly affect the fraction of small grains.