Thermogravimetric Analysis (TGA) measures weight changes in a material as a function of temperature (or time) under a controlled atmosphere. Its principal uses include measurement of a material's thermal stability and composition. Thermogravimetric Analysis instruments are routinely used in all phases of research, quality control and production operations. TA Instruments offers the Q5000IR, Q500, Q50, and simultaneous DSC / TGA (Q600) to meet the various needs of the researcher, quality control analyst and academic instructor.