Test Types Explanation of the different methods applicable to
analyzing samples. |
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Wet/Dry Collect a wet curve from a wetted sample. Immediately collect a dry curve from the same sample without operator intervention. The flow applied during the wet curve must completely dry the sample.
• Complete data set with very limited operator involvement • Potential for
a dry curve — and therefore pore size distribution — to have lower accuracy
if the wet curve measurement did not reach a pressure high enough to empty
all pores |
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Dry/Wet Collect a dry curve on an untreated sample. Wet the sample and collect a wet curve.
• Greatest confidence in dry curve — and therefore pore size distribution — accuracy • Requires
operator intervention during the experiment to wet the sample |
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Wet/Calculated Dry Collect a wet curve from a wetted sample. The dry curve is calculated by fitting the high pressure end of the wet curve that represents dry behavior.
• Fastest measurement, lowest gas consumption • Avoids dry curve errors associated with re-wetting • Indirect
measurement of dry flow |
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Bubble Point Only Measures bubble point (size of largest pore) from a wetted membrane.
• Quick
measurement of key membrane characteristic |