Description
PORA TE membrane filters in white are PTFE membrane discs for laboratory filtration, with a pore size of 3,00 µm and a diameter of 90 mm. Produced from polytetrafluoroethylene (PTFE), they support chemically demanding clarification, particle retention and sample-preparation tasks where a 3,00 µm pore width is required. Each pack contains 25 pieces, matching larger-diameter formats used in higher-volume or broader-area filtrations. The PORAFIL TE series from manufacturer Macherey-Nagel delivers consistent white membranes for 90 mm holders in vacuum and pressure setups. PTFE construction tolerates aggressive solvents and a broad spectrum of chemical media while preserving dimensional stability in routine lab use. These filters are non-sterile and meant for general laboratory filtration, not aseptic processing. The 90 mm diameter suits larger filter funnels and holders for solvent clarification, particle collection or sample clean-up that call for a PTFE membrane at 3,00 µm. Clear specification of pore size and diameter helps align the disc with method demands and available hardware.
This article is part of Membrane filters, in Filtration.
Key features
- Pack size: 25 pc(s)
- Product type: Membrane filter
- Material: Polytetrafluoroethylene (PTFE)
- Pore size: 3,00 µm
- Diameter: 90 mm
- EAN: 4046681008214
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Questions about PORA TE, white, PW:3,00 µm, d: 90 mm
What is this article?
PORA TE, white, PW:3,00 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.
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.