materjali tegeliku tiheduse määramise meetod, mis seisneb materjali (aine) massi jagamises selle materjali poolt täidetud mahuga (vt tegelik tihedus, püknomeeter), a method used to determine the true density of materials; actually a method of determining the density by dividing the sample weight by the volume measured (see: true density, pycnometer)