What is "thermogravimetry"

n. (context physics chemistry English) The measurement of the mass of a material as it is heated in a controlled manner

n. the measurement of changes in weight as a function of changes in temperature used as a technique of chemically analyzing substances

Thermogravimetry (also known by the acronym "TG"; alternative spellings include thermo-gravimetry and thermogravimmetry) is a branch of physical chemistry, materials research, and thermal analysis. It is based on continuous recording of mass changes of a sample of material, as a function of a combination of temperature with time, and additionally of pressure and gas composition.