Determination of Ash in Various Plastics and Plastic Blends

Determining the filler content of plastic is an important aspect of quality control monitoring. Ash is the inorganic remainder that is left after heating a polymer at high temperatures to remove the presence of water and organic matter. Therefore, the ash content of a plastic is reflective of the relative filler content in that plastic and can be used as a quality control parameter. The standard test method for ash content analysis is thermogravimetric analysis (TGA).