Used in size-exclusion chromatography calibration to accurately determine the molecular weight of macromolecules in solution. Provides a reliable reference for column calibration in analytical instruments like GPC (Gel Permeation Chromatography). Commonly applied in pharmaceutical and biotechnology industries for quality control of polysaccharides, proteins, and synthetic polymers. Ensures consistency and traceability in molecular weight measurements across laboratories. Also utilized in viscosity and diffusion studies where precise molecular weight standards are required.