Micromeritics ASAP 2020 Confirm Operator's Manual page 101

New
Dosing
First Pressure Fixed
Dose
202-42811-01 - Mar 2011
Option Prompts for...
4 a Po and analysis bath temperature
an analysis bath temperature only (when
Absolute pressure dosing is selected on the
Analysis dialog)
5 a psat gas other than the adsorptive; the
temperature and pressure ranges for the
chosen gas are displayed. Click
to edit the values if desired. Editing the
values in the current table do not affect the
ones of the original table
6 an analysis bath temperature
Displays the Dosing Options dialog.
The most frequent use of this option is when you are
performing a standard nitrogen analysis of mesoporous
materials such as catalysts. If the first pressure table point is
low and you expect the gas uptake of the sample to be high,
this option can shorten the time required to reach the first
point on the pressure table.
The sample is dosed repeatedly at low pressures with a
specified amount of gas until the first pressure point is
reached. This initial dosing quickly meets the adsorptive
demand of the sample.
ASAP 2020 Confirm
Psat vs.T
4-25