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General Principles of Permeameter Design
Purpose of this Circular
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accuracy advantage in ceramic aemi-flint and plaatic affected by changes air flow rates apparatus atmospheric pressure bottom calibrated capillary tube CERAMIC BODIES Ceramic Engineering clamped clay Semi-flint clay claya Flint Comparative Permeability cubic centimeters cury Description of Permeameter.—Ae difference in level ENGINEERING EXPERIMENT STATION equilibrium of flow Extremely Dense Bodies felt gasket Flint and aemi-flint Flint and plaatic Full-Sized Bricks gasometer ILLINOIS ENGINEERING EXPERIMENT leaks manome manometer measuring the permeability mercury column mercury reservoir mercury trough meter Modification moisture content obtained perme permea permeability measurements PERMEABILITY OF CERAMIC plaatic claya porcelain bodies pore volume pressure difference pressure head Range of Usefulness.—Type rate of air rate of flow Shale Danville5 IU Shale Springfield5 IU standard fluid standard pressure drop standard straight brick stopcock stream of air thermal thermal conductivity thickness trough and reservoir type A permeameter unburned clay brick vacuum pump volume rate