ASAP 2460 Operator’s Manual Report Options Files
246-42800-01 - Aug 2013 3-37
BET/Langmuir Surface Area Report Options
The Langmuir and BET Surface Area windows are identical unless otherwise specified. In the
Selected Reports list box, highlight BET (or Langmuir) Surface Area, then click Edit.
• The BET calculation obtains the sample surface area value by determining the monolayer volume of
adsorbed gas from the isotherm data.
• The Langmuir calculation determines the surface area of a sample by relating the surface area to the
volume of gas adsorbed as a monolayer.
Field or Button Description
Select Pressure Range
for BET (or
Langmuir) fit text
boxes
Enter values to indicate the fitted pressure range.
Tabular report
checkbox
Use to have a table of measured and calculated values generated.
Displays as Langmuir Surface
Area Report Options if the
Langmuir report is being
edited.
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