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Table 2 Workflow of reprocessing in the washer/disinfector and further processing

From: Hygienic safety of reusable tap water filters (Germlyser®) with an operating time of 4 or 8 weeks in a haematological oncology transplantation unit

Step

Parameters

Flushing

25°C, 2 min, RO (reverse osmosis) water

Basic cleaning and disinfection

(NaOH) pH 11, RO water, 50°C/5 min

Rinsing

RO water 25°C/1 min

Acidic cleaning to remove mineral stains of calcium carbonate

phosphoric acid, pH 2, RO water, 50°C/5 min

Final rinsing

RO water 25°C/1 min

Thermic disinfection

95°C/10 min, RO water

Check for membrane integrity

resistance time over 1 min

Drying with sterile air

115°C

Packing and documentation

sterile boxes