Alpha-S Method - Micromeritics ASAP 2460 Operator's Manual

Report Options Files

Alpha-S Method

The Alpha-S plot converts the standard adsorption isotherm into a dimensionless isotherm using the
quantity adsorbed at a relative pressure of 0.4. In the Selected Reports list box, highlight Alpha-S
Method, then click Edit.
One predefined curve is shipped with the analysis program and is located in the Reference directory.
Use the table to enter relative pressure and the alpha-s values.
Field or Button
Open button
Insert / Delete / Clear /
Append buttons
3-46
To import values from an existing thickness curve (.ALS file), click Open
and select the file containing the values.
The table to be imported must be saved as ASCII text with a .ALS file
extension. It must have a two-column format with the relative pressures in
the first column and the alpha-s values in the second column. Columns
must be separated by a space or a tab.
Refer to buttons, page
Table
Clear, and Append buttons.
ASAP 2460 Operator's Manual
Description
for a description of the Insert, Delete,
3-3
246-42800-01 - Aug 2013