The Thermogravimetric Analyzer (TGA) is an essential laboratory tool used for material characterization.  (TGA) is a method of thermal analysis in which changes in physical and chemical properties of materials are measured as a function of increasing temperature (with constant heating rate), or as a function of time (with constant temperature and/or constant mass loss).  TGA is used as a technique to characterize materials used in various environmental, food, pharmaceutical, and petrochemical applications. PerkinElmer is the leader in TGA.