Description
VitraPOR® glass filter plate 70 mm with porosity 2 is a precision disc manufactured from borosilicate glass 3.3 for laboratory filtration. It features a diameter of 70 mm, an untreated surface that is round and centred, and a thickness of 5,5 mm with a tolerance of ± 1,3 mm. This configuration supports controlled separation tasks where defined pore characteristics are required. The plate integrates readily into standard filtration apparatus thanks to its centred geometry and consistent dimensions. Available as a pack of 5 pieces from manufacturer ROBU - Stereon, the product delivers reliable performance based on the inherent chemical resistance and thermal stability of borosilicate glass 3.3. Porosity grade 2 provides suitable flow behaviour for medium media handling in analytical and preparative workflows. Researchers value the untreated surface that preserves the natural material properties without additional coatings. The standardised 70 mm format ensures compatibility across common laboratory setups while maintaining dimensional accuracy within the stated tolerance.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 5 pc(s)
- Material: Borosilicate glass 3.3
- Diameter: 70 mm
- Porosity: 2
- Thickness: 5,5 mm ± 1,3 mm
- Surface: Untreated, round centred
- Technical Information Sheet:
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Questions about Filter Disc, centered, 70 mm, Por. 2 Thickness 5.5 mm ± 1.3 mm
What is this article?
Filter Disc, centered, 70 mm, Por. 2 Thickness 5.5 mm ± 1.3 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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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.