Polystyrene standard is widely used in various industries and research fields due to its well-defined molecular weight and properties. In the field of polymer science, it serves as a calibration standard for gel permeation chromatography (GPC) to determine the molecular weight distribution of polymers. This helps in characterizing and comparing the properties of different polymer samples. In material science, it is utilized as a reference material for studying thermal, mechanical, and rheological properties of polymers. Additionally, it plays a crucial role in quality control processes in manufacturing, ensuring consistency and performance of polymer-based products. Its application extends to educational settings, where it is used as a teaching tool to demonstrate polymer analysis techniques and principles.