LimsPulse
Microbiology & sterility

Membrane filtration unit

A manifold with filter funnels connected to a vacuum source (or a peristaltic pump for closed canisters) that passes liquid samples through a 0.45 µm membrane so that microorganisms are retained and can be grown and counted.

  • Pharmaceutical
  • Biotech
  • Water testing
  • Food & beverage
  • Medical devices
Photo of a Membrane filtration unit
Photo: Stéphane Lesbats (Ifremer), CC BY 4.0 (cropped), via Wikimedia Commons
PREVENTIVE MAINTENANCE

Maintenance checklist

Each use

  • Disinfect manifold
  • Empty and decontaminate the trap

Weekly

  • Check valves and seals for leaks
  • Replace the vacuum-line filter as needed

Periodic

  • Service the vacuum pump
  • Check peristaltic pump tubing and head (sterility systems)
SAFETY

Safety precautions

Before you work on the Filtration unit
  • Use a trap and filter to protect the vacuum pump and the room from aerosols.
  • Handle autoclaved funnels with heat-resistant gloves.
  • Treat membranes and filtrates from cultures as biohazard waste.
In LimsPulse · Calibration Management

Keep every Filtration unit in control: usage logs, calibration and maintenance schedules, and automatic blocking of overdue instruments.

See how