REFLECTIONS AND SUPPLEMENTS TO THE KEYLWE RTH-DIAGRAM

The data of the ''Keylwerth-Diagram'', developed from sorption measure ments of W. K. Loughborough (1931), were compared with the sorption da ta for spruce and beech wood from L. Weichert (1963). Significant diff erences between these different sets of data are only given for data f rom desorption, for small moisture contents and for sorption at low te mperatures. Differences between sorption for spruce and beech wood can be partial neglected, if the accuracy of the diagram is considered. B ecause the data of Loughborough could not be verified, new diagrams fo r spruce and beech wood, under consideration of adsorption and desorpt ion, were developed using the data of Weichert.