Description
VitraPOR® glass filter plate, 190 mm diameter, porosity 4, is a sintered disc produced from borosilicate glass 3.3 for laboratory filtration and gas- or liquid-handling assemblies. The plate has a nominal thickness of 15,0 mm with a tolerance of ± 3,5 mm and is supplied round and centred with an untreated surface, ready for incorporation into filter funnels, custom glass apparatus or process equipment. Porosity grade 4 provides a defined pore structure suited to controlled particle retention and reproducible flow in analytical, preparative and quality-control workflows. Chemical resistance and thermal stability typical of borosilicate 3.3 support use with aqueous and many organic media under standard laboratory conditions. Offered as a single piece from manufacturer ROBU - Stereon, this filter plate enables consistent set-ups where a durable porous glass medium is required. The untreated surface permits direct installation or further laboratory processing according to local protocols, making the disc a practical component for research, teaching and industrial laboratories that rely on standardised VitraPOR® frit geometry.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 1 pc
- Brand: VitraPOR®
- Material: Borosilicate glass 3.3
- Diameter: 190 mm
- Porosity: 4
- Thickness: 15,0 mm ± 3,5 mm
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Questions about Filter Disc, centered, 190 mm, Por. 4 Thickness 15 mm ± 3.5 mm
What is this article?
Filter Disc, centered, 190 mm, Por. 4 Thickness 15 mm ± 3.5 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.
How does ordering and shipping work?
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.