Description
PORAFIL CM membrane filter, white, is a laboratory membrane filter disc with a pore size of 0,45 µm and a diameter of 100 mm. These larger white CM membranes are suited to microfiltration steps that require a defined pore width for particle retention and clarification of bigger sample volumes. Supplied in a pack of 25 pieces, they provide a practical stock for workflows that use 100 mm filter holders. The PORAFIL CM range from manufacturer Macherey-Nagel focuses on consistent membrane geometry and straightforward laboratory handling. The discs are non-sterile and intended for general bench filtration rather than aseptic processes. A 0,45 µm pore size supports fine particulate control at the microfiltration scale commonly used in analytical and quality-control settings. Uniform white membranes help with visual checks during mounting and after filtration. This 100 mm format integrates into larger vacuum and pressure assemblies where higher throughput or broader filtration area is preferred while retaining 0,45 µm performance.
This article is part of Membrane filters, in Filtration.
Key features
- Pack size: 25 pc(s)
- Membrane type: PORAFIL CM
- Colour: White
- Pore size: 0,45 µm
- Diameter: 100 mm
- EAN: 4046681009181
Compliance & Safety Information
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Questions about PORA CM, white, PW:0,45 µm, d: 100 mm
What is this article?
PORA CM, white, PW:0,45 µm, d: 100 mm is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Membrane filters, inside Filtration, in Lab consumables.
A membrane filter is the disc itself, without a syringe housing. Pore size, polymer and diameter are the specification, and the disc has to sit in a holder. Gridded membranes are for counting colonies. A membrane and a filter paper of the same diameter are not interchangeable.
Filtration holds back what is larger than the pores and lets the rest through. Paper is the ordinary laboratory filter. A membrane has a stated pore size and a polymer that must survive the solvent. A syringe filter is that membrane in a housing on a syringe. Glass fibre takes a higher dirt load. Ultrafiltration holds back macromolecules and passes salts. The pore size, the chemical compatibility and the volume are the three choices. Laboratory apparatus around filtration is indexed under ISO laboratory apparatus.
Which category should I open next?
The category is Filtration. The sub-category is Membrane filters. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, Sintered glass filter plates & discs, Syringe filters, Filter cartridges & capsules, Glass & quartz fibre filters, Bottle-top & vacuum filtration units, Ultrafiltration & concentrators, Filtration accessories, Extraction thimbles and Dialysis tubing & devices.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

