| 摘要 |
<p>A method for determining contamination of a production system (1) for commercially sterile liquid food products, said system having at least one flow pipe (4;4a-d) , through which the liquid food product flows, comprises the following steps: A sampling device (6;6a-c) is arranged in an opening in a wall of the at least one flow pipe (4;4a-d) . The sampling device (6;6a-c) comprises a chamber (10) and a tube (7) which in its one end is connected to a needle- like nozzle (9) and in its other end is connected to a collecting means (8), such as a bag, for collecting sampled liquid. The chamber (10) has an elastically deformable, penetrable wall (11) which is sealingly arranged in the opening. The nozzle (9) is inserted into the flow pipe (4; 4a- d) through the chamber (10) and through the elastically deformable, penetrable wall (11) . Liquid passes from the flow pipe (4;4a-d) to the collecting means (8) through the needle-like nozzle (9) and the tube (9) . When the amount of sampled liquid in the collecting means (8) has reached a predetermined value, an analysis is performed of the contamination of the sampled liquid collected in the collecting means (8) , and based on the result of the analysis, it is determined whether food products produced during the time period that liquid was passed to the bag (8) are contaminated or not.</p> |
