Used as a reference standard in analytical laboratories to accurately determine the concentration of potassium sorbate in food, beverage, and pharmaceutical products. Commonly employed in quality control testing to ensure proper preservative levels, maintain product safety, and comply with regulatory standards. Suitable for use in titration, high-performance liquid chromatography (HPLC), and other analytical methods where precise calibration is required. Helps in validating test procedures and maintaining consistency across batches in manufacturing processes.