Description
PORAFIL CA membrane filters, white, are cellulose acetate (CA) membrane discs with a pore size of 0,20 µm and a diameter of 90 mm for laboratory filtration. The defined pore rating supports fine particulate retention and clarification in sample preparation, buffer handling, and related analytical workflows where a consistent membrane geometry is required. Cellulose acetate is offered here as plain white discs suited to aqueous and compatible laboratory media. Each pack contains 50 pieces, giving a practical working quantity for routine bench filtration. These PORAFIL CA membranes from manufacturer Macherey-Nagel combine a standardised 0,20 µm pore width with a 90 mm disc diameter that fits matching filter holders and funnels. The non-sterile format is intended for general laboratory use rather than aseptic processing. Uniform diameter and pore size help maintain reproducible set-ups across parallel filtrations. Choose this grade when protocols specify cellulose acetate media at 0,20 µm in the 90 mm format for clarification or particulate control under standard laboratory conditions.
This article is part of Membrane filters, in Filtration.
Key features
- Pack size: 50 pc(s)
- Material: Cellulose acetate (CA)
- Colour: White
- Pore size: 0,20 µm
- Diameter: 90 mm
- EAN: 4046681007880
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Questions about PORA CA, white, PW:0,20 µm, d: 90 mm
What is this article?
PORA CA, white, PW:0,20 µm, d: 90 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.
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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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.