Description
VitraPOR® glass filter plate made of borosilicate 3.3 has a diameter of 50 mm, porosity 5 and thickness of 4,5 mm with tolerance ± 1,0 mm. The surface is untreated and the plate is round and centered. This filter plate from manufacturer ROBU - Stereon is intended for laboratory filtration applications requiring defined porosity glass media. It is supplied in packs of 10 pc(s) for convenient use in research or routine workflows. Borosilicate 3.3 provides the chemical resistance and thermal properties expected for glass filtration components. Porosity grade 5 determines the flow and retention behaviour during particle separation or clarification steps. The standardised 50 mm diameter allows integration into funnels, crucibles or custom holders. Dimensional consistency within the stated tolerance supports reproducible sealing and performance. These plates assist sample preparation, precipitate collection and solution clarification in analytical and preparative settings. The centered round form ensures proper seating in apparatus. Overall construction aligns with common requirements for VitraPOR® glass filter media in scientific laboratories.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 10 pc(s)
- Diameter: 50 mm
- Porosity: 5
- Thickness: 4,5 mm ± 1,0 mm
- Material: Borosilicate 3.3
- Surface: Untreated
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Questions about Filter Disc, centered, 50 mm, Por. 5 Thickness 4.5 mm ± 1.0 mm
What is this article?
Filter Disc, centered, 50 mm, Por. 5 Thickness 4.5 mm ± 1.0 mm is the article on this page. Luminix Health distributes ROBU - Stereon for laboratory use. It sits in Sintered glass filter plates & discs, inside Filtration, in Lab consumables.
A sintered glass filter is a disc of fused glass particles with a porosity grade, often 0 to 5, from coarse to fine. It is cleaned and reused. The porosity number, not a micrometre guess, is the specification. Hydrofluoric acid and strong alkali attack the glass.
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 Sintered glass filter plates & discs. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, Syringe filters, Filter cartridges & capsules, Membrane filters, 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. Delivery across Europe, two to five days when in stock. 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.