This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage of the food additive sodium percarbonate. This standard applies to sodium percarbonate produced by neutralizing hydrogen peroxide produced by electrolysis with sodium carbonate. This product is mainly used as a milk preservative. Molecular formula: 2Na|(2)CO|(3)·3H|(2)O|(2) Relative molecular mass: 314.02 (according to the 1991 international relative atomic mass)