2016GB 4806.6-2016 National Food Safety Standard Plastic Resins for Food Contact
1988GB 9693-1988 Hygienic standard for polypropyrene resin used as food packaging material
1981GBn 146-1981 Hygienic standard for polypropylene resin for food packaging
GBn 146-1981 Hygienic standard for polypropylene resin for food packaging was changed to GB 9693-1988 Hygienic standard for polypropyrene resin used as food packaging material.