Running Experiments
3–16 TA I
NSTRUMENTS
TGA 2050
the hang-down tube and through an outlet in the
balance chamber to the right of the hang-down
tube. It then exits across the sample pan along
with the furnace purge.
The purge flow through the furnace is horizontal
to the sample (Figure 3.6), permitting rapid
removal of decomposition products from the
sample environment.
Figure 3.6
Furnace Purge
You can choose nitrogen, oxygen, helium, air, or
argon for your purge environment. Do not use
any other gases in the TGA 2050.
Do not use hydrogen or any other explosive
gas in the TGA 2050 furnace. Oxygen may be
used as a purge gas, but the furnace must be
kept clean of volatile hyrdrocarbons to prevent
combustion.
Do not use any liquid in the purge lines.
!
WARNING
!
WARNING
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