2016GB 5009.253-2016 National food safety standard Determination of perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) in food of animal origin
2003GB/T 5009.53-2003 Method for analysis of hygienic standard of products made by starch
1996GB/T 5009.53-1996 Analytical method of hygienic standard for starch products