Relative Merits of Direct Weight Loss and Specific Gravity Methods in Determining Wood Substance Losses in Outside Chip Storage

摘要

A comparison is made of wood substance losses observed during a two-year study of outside chip storage of separate homogeneous samples of white spruce and lodgepole pine chips, determined by the direct-weight-loss method and the specific gravity method. Two measurements are of prime importance in a determination of the extent of deterioration of pulpwood chips stored in outside piles. They are measurement of wood substance losses during storage and changes in pulp yield based on stored wood. These results can be combined to give overall pulp yield loss based on unstored wood. (Author)