This standard specifies the technical specifications for composite flexible packaging materials for liquid food. This standard applies to materials made of base paper, high-pressure low-density polyethylene, aluminum foil, etc., which are extruded and compounded, and are specially used for packaging liquid food in the aseptic filling machine of the Swedish Tetra Pak Company.
QB/T 3531-1999 history
1989QB/T 3531-1999 Composite materials for liquid food packaging