Description
PORA CM membrane filter, white, pore size 0,45 µm, diameter 25 mm is a PORAFIL CM disc filter designed for laboratory clarification and particle removal. The white membrane offers a pore width of 0,45 µm and a 25 mm diameter suited to standard mid-size filter holders used in sample preparation. Packs contain 100 pieces from manufacturer Macherey-Nagel, providing a convenient stock for repeated filtration steps before instrumental analysis or further processing. The CM membrane format is intended for general laboratory filtration of aqueous and compatible organic liquids when a 0,45 µm retention rating is required. Filters are supplied non-sterile for workflows that do not need pre-sterilised media. The 25 mm size balances filtrate volume with manageable hold-up and fits widely used syringe-filter and in-line holder geometries. Country of origin is Germany. Select chemically compatible solvents, observe recommended differential pressure and dispose of used membranes according to local laboratory rules. Consistent pore size and pack quantity support routine analytical, QC and research filtration tasks.
This article is part of Membrane filters, in Filtration.
Key features
- Pack size: 100 pc(s)
- Product type: PORAFIL membrane filter CM
- Colour: White
- Pore size: 0,45 µm
- Diameter: 25 mm
- EAN: 4046681009266
Compliance & Safety Information
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Questions about PORA CM, white, PW:0,45 µm, d: 25 mm
What is this article?
PORA CM, white, PW:0,45 µm, d: 25 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.