membranfiltrationsprov
Membrane filtration test, or membranfiltrationsprov, is a microbiological technique used to detect and quantify microorganisms in liquid samples by filtering a known volume through a sterile membrane that traps cells. The membrane is then placed on an appropriate culture medium and incubated under conditions selective for the target organisms. After incubation, colonies on the membrane are counted and expressed as colony-forming units per unit volume (CFU/mL or CFU/100 mL).
A sample is passed through a membrane with a pore size typically around 0.45 micrometers under sterile
Membrane filtration is widely used in water quality testing (drinking water, treated wastewater, and recreational waters)
Advantages include high sensitivity, the ability to process relatively large sample volumes, and direct enumeration of
Membrane filtration methods are described in national and international standards and guidelines, including ISO and national