What is the unit ml/g/um in mercury porosimetery?

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The discussion centers on the outputs of mercury porosimetry, specifically the meaning of "Differential intrusion in ml/g/um." Participants seek clarification on what the micrometer (um) represents in this context, questioning whether it refers to the characteristic length of the sample, the average pore diameter, or radius. Additionally, there is confusion regarding the term "log differential intrusion," which is expressed in ml/g, noting that the micrometer unit is absent and prompting inquiries about what has been logarithmically transformed. The conversation emphasizes the need for a clearer understanding of these measurements in relation to pore structure analysis.
Salish99
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One of the outputs of mercury porosimetry is Differential intrusion in ml/g/um.
this is ml of Hg per g of sample per um of what?
What is that micrometer? The characteristic length of the sample, the average pore diameter or radius?.

Also, why is there a "log differential intrusion", for which the unit is ml/g. The um have vanished but what has been log-ed?

Thx.
 
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