Description
PORA CM white membrane filters with a pore size of 0,45 µm and a diameter of 142 mm are designed for laboratory filtration where defined retention and consistent membrane performance are required. These PORAFIL CM discs provide a uniform white filter surface suited to clarifying and separating aqueous and compatible sample streams in analytical and preparative workflows. Supplied in packs of 25 pieces, they fit standard filter holders and apparatus matched to the 142 mm format, supporting routine sample preparation, particle retention and general membrane filtration tasks. The 0,45 µm pore width is a widely used specification for fine filtration steps ahead of further analysis or processing. Manufactured by Macherey-Nagel, the CM membrane construction offers a practical choice for laboratories that need reliable, ready-to-use discs without sterility claims. Ideal for research, quality control and industrial lab environments working with membrane filtration of liquids at this pore size and diameter.
This article is part of Membrane filters, in Filtration.
Key features
- Pack size: 25 pc(s)
- Product type: PORAFIL CM membrane filter
- Colour: white
- Pore size: 0,45 µm
- Diameter: 142 mm
- EAN: 4046681009136
Compliance & Safety Information
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Questions about PORA CM, white, PW:0,45 µm, d: 142 mm
What is this article?
PORA CM, white, PW:0,45 µm, d: 142 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.