Method and device for determining the seal quality of packages, such as bags partially filled with products and protective gas. The pinching action causes a portion of the pipe element to move radially inwardly away from the die contrary to the direction of the motion of the arbor. The UV-ray shielding layers prevent the ultraviolet ray from penetrating through the edge and the support and from reaching the thermosensitive coloring layers. The sort method saves initial data record selections and continues to process subsequent records. The fluid infusion device comprises a pressure management system at least partially defined in the reservoir chamber to manage air pressure in the reservoir chamber.