TA Instruments TGA 2050 Operator's Manual page 88

Technical Reference
4–4
During normal operation of the TGA, the sample
may evolve gases. To prevent back diffusion of
these liberated gases to the balance chamber, the
balance chamber is purged with an inert gas (10
cc/min). An inert gas must be used to prevent
contamination or corrosion of the balance.
Heating rate and sample temperature are mea-
sured by the thermocouple located above the
sample. This enables the controller to program
and maintain the sample environment at your
selected rate.
TA I TGA 2050
NSTRUMENTS