Bulk density of wood chips, Useful Method UM 23 (2015)
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This method is used to determine the weight on a moisture-free basis per unit volume of wet wood chips, the bulk density. For purposes of reference, a standard pressure of 11 kPa (225 lb/ft2) has been chosen. Of course, the principles of the test can be applied to the pressure of any digester or chip bin by making appropriate adjustments to the pressure of the test.