A carton with a new dispenser that can be opened by a pull tab with this dispenser flap being placed in a corner of the top panel of the carton so that it is adjacent to the tops of the small necks of the bottles for easy opening and removal or for opening and reclosing. The measured temperature is compared to an upper limit value stored in the integrated circuit. A first insulating material is deposited over the plurality of active area regions and the at least one trench, partially filling the at least one trench with the first insulating material and forming peaks of the first insulating material over the plurality of active area regions. A method for precise-volume pumping employing the nanopump and a nanopump device for determining the lengths of nucleic acid fragments in an electrolyte solution of different-length fragments are also described. A power conductor and a ground conductor for the ejection actuators is routed in a second metal conductor layer. The piping structure of a working machine comprises a guide cylinder in which is slidably inserted an intermediate portion of hose to define the bending position of the hose.