Cleaning instructions for organophilic polymeric membranes, version 25-07-2014, Page 1/1

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Cleaning instructions for organophilic polymeric membranes

1. Cleaning procedure Cleaning from aqueous environments requires special care. This is to keep elements (more or less) free from microorganisms. In case you are processing food products, starch or other carbohydrate sources containing like egg free juices, wine, (soy bean) milk etc. take extreme care to clean your element during and after experiments. A very straight forward method:

1. Rinse thoroughly after use ( from aqueous solutions reverse osmosis water can be used) 2. After rinsing with clean water rinse with 0.25 wt.% sodium metabisulphite. Rinse for at least 30

minutes and keep membrane wetted with this solution for storage 3. For prolonged storage (>2 weeks) step 2 should be repeated