Sartorius Stedim Biotech Gmbh

Hartmut Langer

Martin Dahlberg

Nicolas Voute

Magnus Andreas Stering

Jens Meyer

Sven-Oliver Otto

A cleaning process is provided for a test apparatus that has a switch, external connections and internal volumes that can come into contact with a fluid from a filter to be tested or a container to be tested. The cleaning process includes selecting one or more internal volumes to be cleaned, cleaning the selected internal volumes with a cleaning fluid by a corresponding switching of the switch, at least partially draining the cleaning fluid left in the selected internal volumes after cleaning, and flushing the selected internal volumes with a flushing fluid different from the cleaning fluid. Also provided are a computer program product for performing the cleaning process, a cleaning apparatus, and a test apparatus for testing filters and containers.

Cleaning process for a test device, computer program product for performing such a process, and test device

There is a bag () that has at least one lateral gusset () and at least one port (), a source () of pressurized gas, elements () for measuring the pressure of the gas; &#x2014;there are two restraining plates and spacer strips. The bag is placed flat between the two restraining plates (). At least one spacer strip () is inserted between the two small walls of each gusset in order to prevent these walls from resting on one another. The port is connected to the gas source and the pressure measuring elements. The gas is sent under pressure into the bag, the expansion of the bag being limited by the restraining plates; then, the pressure drop in the bag is compared to a predefined threshold.

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Goettingen, Germany

Hartmut Langer