| 摘要 |
A porosimeter evaluates the porosity characteristics (specifically, pore volume, pore distribution and liquid permeability) of a porous sample of material. The porosimeter includes a fluid reservoir located below the sampl e, and a penetrometer comprising a vessel which catches any fluid displaced fro m the reservoir of fluid, wherein a level of fluid rises in the penetrometer when additional fluid enters the penetrometer. The sample is preferably wetted, with the same type of fluid which is in the reservoir, prior to placing the sample on the porosimeter. The porosimeter preferably also includes a membrane located between the sample and the reservoir of fluid. T he membrane has pores with a size smaller than any of the sample pores. Permeability is measured by measuring rate of flow while the liquid level is above the sample.
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