This document specifies the terms and definitions, chemical name, molecular formula, structural formula and relative molecular mass, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, storage, transportation and quality commitment of the food additive potassium sorbate. This document applies to the food additive potassium sorbate produced by the reaction of sorbic acid and potassium hydroxide (and/or potassium carbonate) with water as the solvent.