Description
VitraPOR® biplane glass filter plate, porosity 4, is a precision borosilicate 3.3 disc measuring 210 mm in diameter with a controlled thickness of 11,5 mm ± 0,5 mm. Ground faces provide exact thickness and a plane-parallel surface, enabling reliable sealing and uniform filtration performance in laboratory and process glass assemblies. Porosity grade 4 is appropriate for finer filtration tasks where smaller pore structure and defined flow behaviour are needed. As a VitraPOR® filter plate from manufacturer ROBU - Stereon, it combines the chemical durability of borosilicate 3.3 with dimensional accuracy for frits, filter holders, and custom filtration setups. The single-piece unit is ready for use in analytical, preparative, and technical applications that call for a large biplane glass filter plate of porosity 4 with tightly toleranced thickness.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 1 pc
- Product type: VitraPOR® biplane glass filter plate
- Material: Borosilicate glass 3.3
- Diameter: 210 mm
- Porosity: 4
- Thickness: 11,5 mm ± 0,5 mm
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Questions about Filter Disc, bi-plane, 210 mm, Por. 4 Thickness 11.5 mm ± 0.5 mm
What is this article?
Filter Disc, bi-plane, 210 mm, Por. 4 Thickness 11.5 mm ± 0.5 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.