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DIN EN 12255-16
Wastewater treatment plants - Part 16: Physical (mechanical) filtration; German version EN 12255-16:2021
DIN EN ISO 6461-2 rev
Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) - Part 2: Method by membrane filtration
DIN EN ISO 9308-4
Water quality - Detection and enumeration of Escherichia coli - Part 4: Membrane filtration method for water with high levels of background bacteria
DIN EN ISO 13408-2/A1
Aseptic processing of health care products - Part 2: Sterilizing filtration - Amendment 1
EN ISO 13408-2/prA1
Aseptic processing of health care products - Part 2: Sterilizing filtration - Amendment 1
IEC 59F/167/CD
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
ISO 13408-2 CD AMD 1
Aseptic processing of health care products - Part 2: Sterilizing filtration - Amendment 1
ISO/AWI 6461-2
Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) - Part 2: Method by membrane filtration
ISO/AWI 9360-3
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