TA I
NSTRUMENTS
TGA 2050 3–5
Calibrating the TGA
The TGA 2050 requires two kinds of calibra-
tion: temperature calibration and weight cali-
bration. Both of these calibrations should be
performed when you first install the instrument
and at least once a month thereafter. Consult the
see the online help and documentation for
further information.
Temperature
Calibration
Temperature calibration involves analyzing a
material for its Curie Temperature, and compar-
ing the observed value with the standard litera-
ture value. The standard most often used is
nickel with a curie temperature of 354.4°C
(NIST Certificate for GM761). The Curie
Temperature corresponds to the extrapolated
endpoint on the "s-shaped" thermal curve
generated utilizing a magnet.
Figure 3.1
Curie Temperature
Determination
Calibrating the TGA
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