Description
PORAFIL TE membrane filter is a white polytetrafluoroethylene (PTFE) membrane disc with a pore size of 0,45 µm and a diameter of 50 mm. It is intended for laboratory filtration tasks that require defined pore geometry together with the chemical resistance typical of PTFE. The membrane supports clarification, particulate retention and sample preparation steps with aqueous media as well as many organic solvents used in analytical and preparative workflows. Supplied in a pack of 50 pieces from manufacturer Macherey-Nagel, these PORA TE filters fit standard 50 mm filter holders and vacuum or pressure filtration assemblies common in research and quality-control laboratories. The white membrane surface allows straightforward visual assessment of retained material during use. With a uniform 0,45 µm pore width, the discs are suitable for fine particle control ahead of instrumental analysis or further processing. Consistent membrane structure helps maintain reproducible flow behaviour under routine laboratory conditions. The product belongs to the PORAFIL TE range and is supplied non-sterile for general laboratory filtration applications.
This article is part of Membrane filters, in Filtration.
Key features
- Pack size: 50 pc(s)
- Pore size: 0,45 µm
- Diameter: 50 mm
- Material: Polytetrafluoroethylene (PTFE)
- Colour: White
- EAN: 4046681008436
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about PORA TE, white, PW:0,45 µm, d: 50 mm
What is this article?
PORA TE, white, PW:0,45 µm, d: 50 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.