Specific gravity of inner and outer beech bark

Abstract

For beech bark (Fagus sylvatica), specific gravity was measured by means of pycnometer and by water immersion. The pycnometer was suitable for measurement of all analysed sample types. Water immersion method could only be applied to beech wood, whole and inner beech bark. Specific gravities of whole beech bark (0.58 ± 0.04), inner beech bark (0.57 ± 0.05) and outer beech bark (0.75 ± 0.06) differed significantly.