Pressure prevailing determining method of packet filled with product e.g. nuts involves reducing pressure in measurement chamber until pressure in inner volume of measurement chamber is same as pressure inside package

摘要

The package (2) is provided with rigid element (8) on inner side which is in contact with package film (6). A measurement chamber (12) comprised with inner volume (16) including a suction opening of perimeter (14) which fits into the perimeter of rigid element. The measurement chamber is sealingly abutted to outer surface of packaging film such that the perimeter of suction device opening rests entirely on rigid element. The pressure in measurement chamber is reduced until pressure in inner volume of measurement chamber is same as the pressure inside package. Independent claims are included for the following: (1) package; (2) kit of units for carrying out pressure prevailing determining method of package; and (3) rigid element.