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Whatman® ME membranes for microbiological control

ME25/21, diam. 47 mm, pore size 0.45 μm, white with black grid

Synonym: Z674052, osmotic membrane, track etched membrane, water membranes

  •  NACRES NB.24



Related Categories Analysis and Detection of Microorganisms, Clarification and Final Filtration, Filtration Supplies, Labware, Manufacturer Browser,
feature   white with black grid
packaging   pkg of 1000 ea
mfr. no.   Whatman Article No., 28415176 (US reference)
  Whatman, 1040-6871
diam.   47 mm
membrane diam.   47 mm
pore size   0.45 μm


General description

These membranes are used to quantitatively evaluate microorganism counts. The liquid is filtered through a membrane and microorganisms collect on the membrane surface. The filter is incubated on a nutrient medium and the individual colonies can then be evaluated. The method is also suitable for large sample volumes and low microorganism counts.

• Mixed cellulose ester membrane
• Economical
• Specifically for aqueous solutions
• Hydrophilic
• For use up to 125ºC

Other Notes

Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

Legal Information

Whatman is a registered trademark of Cytiva

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