Description
PORA CA membrane filter is a white cellulose acetate (CA) membrane disc with a pore size of 0,45 µm and a diameter of 90 mm for larger-format laboratory filtration. The PORAFIL CA construction uses cellulose acetate to give a hydrophilic membrane with a defined 0,45 µm pore structure, appropriate for clarifying aqueous samples, media components and laboratory solutions when higher filtration area is needed. The 90 mm diameter suits correspondingly sized filter holders and funnels, improving throughput relative to smaller discs while retaining the same pore-size specification. Each pack contains 50 white filters, convenient for batch work and shared laboratory stocks. The non-sterile discs are intended for general laboratory clarification and particulate retention rather than aseptic processing. Offered by Macherey-Nagel within the PORAFIL CA line, this variant keeps material, colour and pore width consistent across the diameter range so methods can be scaled with minimal change. Explicit pore size and diameter data support correct matching to holders and written procedures. A reliable cellulose acetate membrane option for 0,45 µm filtration at 90 mm.
This article is part of Membrane filters, in Filtration.
Key features
- Pack size: 50 pc(s)
- Product type: PORAFIL CA membrane filter
- Material: Cellulose acetate (CA)
- Colour: White
- Pore size: 0,45 µm
- EAN: 4046681007767
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Questions about PORA CA, white, PW:0,45 µm, d: 90 mm
What is this article?
PORA CA, white, PW:0,45 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.
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.