Fourier-transform infrared spectroscopy, or FTIR, is a commonly used analytical method in a variety of industries, including polymer research, food science, pharmaceuticals, and environmental monitoring. To guarantee the authenticity and quality of the acquired spectra, FTIR equipment require precise and trustworthy calibrations. Because of its stability and clearly defined absorption bands, polystyrene calibration film is one of the materials used most frequently for FTIR calibration.

Synthetic polystyrene is made up of repeated units of styrene monomers and has a linear structure. It is a well-known material for calibration because of its excellent transparency, thermal stability, and ease of processing. Accurate FTIR instrument calibration is made possible by the availability of polystyrene calibration film, which comes in a variety of thicknesses, usually ranging from 0.1 to 1.0 mm.
. It is mainly for Polystyrene Calibration Film for FTIR calibration.