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Wastewater treatment plants - Part 16: Physical (mechanical) filtration; German version EN 12255-16:2021

Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) - Part 2: Method by membrane filtration

Water quality - Detection and enumeration of Escherichia coli - Part 4: Membrane filtration method for water with high levels of background bacteria

Aseptic processing of health care products - Part 2: Sterilizing filtration - Amendment 1

Aseptic processing of health care products - Part 2: Sterilizing filtration - Amendment 1

IEC 60312-f1 Ed. 5.0: Vacuum cleaners for household use - Dry vacuum cleaners - Methods of measuring the performance - Alternative method for measuring the filtration efficiency of a vacuum cleaner

Aseptic processing of health care products - Part 2: Sterilizing filtration - Amendment 1

Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) - Part 2: Method by membrane filtration

Anaesthetic and respiratory equipment - Heat and moisture exchangers and breathing system filters (HMEF) for humidifying respired gases in humans - Part 3: Measurement of filtration performance

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