Isotherm Report Options

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The Isotherm report indicates adsorption (up to saturation pressure) and desorption (down from saturation pressure) of a gas by a solid held at constant temperature.

Isotherm Report Options Fields and Buttons Table
Field or Button Description
Autoscale [check box]

Autoscale x-axis. Linear x-axes begin at zero. Logarithmic x-axes begin at an appropriate value. The x-axis field shows the relative or absolute pressure.

Autoscale y-axis. The y-axis field shows the quantity of gas adsorbed.

Options [button] 

Click to display related linear plot options. All plot windows contain identical fields.

Autoscale x-axis. Linear x-axes begin at zero. Logarithmic x-axes begin at an appropriate value. The x-axis field shows the relative or absolute pressure.

Autoscale y-axis. The y-axis field shows the quantity of gas adsorbed.

Plot curve / Plot points.Select to plot points on the graph.

Plot Data [check box] Select each option to include in the final report.
Plot Options [group box] Select the types of isotherm to plot.
Quantity Adsorbed [group box]

Select how to report the quantity adsorbed.

  • per gram (cm3/g) STP
  • per BET Surface Area (cm3/m2) STP or mmol/g
  • per other Surface Area (cm3/m2) STP or mmol/m2

Selected Reports
[group box]

Select each option to include on the final report. Click the Options button of a selected item to include plot curve, plot points, and to autoscale x- and y-axes.

Tabular Options
[group box]

Select the options to include on the report.

Elapsed time. Time elapsed during the analysis.

Time between points. Time elapsed between points during the analysis.

Weight %. Enter the mass percentage when plotting pressure composition.

Tabular Report
[group box] 
Select to include tabular data in the report.
x-axis [group box] Indicate if the x-axis should be in linear or logarithmic format.
  For fields and buttons not listed in this table, see Common Fields and Buttons.
 
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