Sample Tube for Gas Adsorption
In 21CFR11 environments, this section is applicable only to members of the Developer group, however, members of the Analyst group may find information in this section helpful. Parameter file information that is available to Analysts is created by a member in the Developer group using information in this section. |
File > Open > [.STB File]
(or click Edit next to the Sample Tube selection on the Sample Description tab when in Advanced option presentation)
Sample Tube files specify information about the sample tube.
Field or Button | Description | ||
---|---|---|---|
Ambient free space [text box] |
Empty sample tube gas capacity measured at room temperature. |
||
Analysis free space [text box] |
Empty sample tube gas capacity measured with the dewar raised. |
||
Load from Sample File [button] | Loads parameters from the selected sample file. | ||
Non-ideality factor [text box] | Compensates for the forces of attraction between molecules in a real gas. This value is used for a calculated free space. | ||
Sample tube [drop‑down box] |
It is a good practice to label each sample tube with a unique identification. Enter that information here. This information will also appear in the Sample Tube drop-down list on the Sample Description tab. | ||
Use filler rod [check box] |
Select if a filler rod is to be used in the sample tube. A filler rod reduces the stem free space volume resulting in reduction of free space error. It is generally a good practice to use filler rods for samples having less than 100 square meters of total surface area. |
||
Use isothermal jacket [check box] | Select if an isothermal jacket is to be used. An isothermal jacket maintains a constant temperature profile along the sample tube stem during an extended analysis of more than 1 or 2 hours. | ||
Vacuum seal type [group box] | Select the seal type to be used. | ||
|
Copyright © 2014 - 2018. Micromeritics Instrument Corporation. All rights reserved.