This standard specifies the requirements, test methods, inspection rules, labeling, packaging, transportation, storage and shelf life of the feed additive potassium dihydrogen phosphate. This standard applies to the feed additive potassium dioxyphosphate produced by thermal phosphoric acid method and wet method phosphoric acid method. Molecular formula: KH:PO,. Relative molecular mass: 136.08 (according to the international relative atomic mass in 2007).