The thermogravimetric analyzer (TGA) is a useful instrument to determine how the mass of a sample changes with temperature. As such, it is an excellent tool to find out how thermally stable your sample is. While most experiments are done under nitrogen atmosphere, the user can also switch to oxygen atmosphere, in which case, the experimenter could determine the rate of oxidation of his/her sample. The Pyris 1 TGA can operate from ambient temperature to 1030 C with a scan rate of 0.1 to 200 C/min. For accurate analysis, 2 mg of samples are needed.