Description
BOLA filter membranes with a diameter of 47 mm and a pore size of 5 µm are microporous PTFE discs for laboratory filtration applications. Each membrane is 0,2 mm thick and offers a filter area of 1735 mm², providing a defined geometry for coarser particle retention and prefiltration steps. Produced from polytetrafluoroethylene (PTFE), the microporous material delivers the chemical resistance expected of PTFE in solvent-facing and general laboratory use. The membranes come in a pack of 10 pieces from manufacturer Bohlender and suit standard holders designed for 47 mm discs. Net weight is 0,006 kg per pack, consistent with the thin, lightweight construction that is straightforward to handle at the bench. Additional BOLA sizes exist when laboratories need aligned membrane formats across several pore ratings. These PTFE filter membranes are a practical choice for sample clarification, solvent filtration and related separations specifying a 5 µm pore size and 47 mm diameter.
This article is part of Membrane filters, in Filtration.
Key features
- Pack size: 10 pc(s)
- Material: Polytetrafluoroethylene (PTFE)
- Membrane diameter: 47 mm
- Pore size: 5 µm
- Thickness: 0,2 mm
- Filter area: 1735 mm²
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Questions about BOLA Filtering Membranes, Ø 47mm 5µm t=0,2mm PU=10pcs. Made of microporous PTFE
What is this article?
BOLA Filtering Membranes, Ø 47mm 5µm t=0,2mm PU=10pcs. Made of microporous PTFE is the article on this page. Luminix Health distributes Bohlender 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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.