Description
VitraPOR® biplanar glass filter plate with 70 mm diameter, porosity 2 and thickness of 4,5 mm ± 0,2 mm is manufactured from borosilicate 3.3. The surfaces are ground to provide exact thickness together with a plane-parallel finish. This precision filter plate from manufacturer ROBU - Stereon is supplied in packs of 5 pc(s). The biplanar geometry presents two flat parallel faces that support accurate seating and uniform contact in filtration assemblies. Porosity grade 2 defines the sintered-glass pore structure that governs flow and retention behaviour. The stated thickness tolerance of ± 0,2 mm ensures dimensional consistency from plate to plate. Borosilicate 3.3 glass contributes chemical durability and thermal stability typical of laboratory sintered media. Ground faces guarantee the planarity and thickness accuracy described in the product data. The 70 mm diameter matches common filter-holder formats used in analytical and preparative work. Each plate maintains the VitraPOR® standard for controlled porosity and mechanical integrity, enabling reliable solid-liquid separation under routine laboratory conditions.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 5 pc(s)
- Material: Borosilicate 3.3 glass
- Diameter: 70 mm
- Porosity: 2
- Thickness: 4,5 mm ± 0,2 mm
- Surface: Ground, plane-parallel
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Questions about Filter Disc, bi-plane, 70 mm, Por. 2 Thickness 4.5 mm ± 0.2 mm
What is this article?
Filter Disc, bi-plane, 70 mm, Por. 2 Thickness 4.5 mm ± 0.2 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.
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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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