Description
VitraPOR® glass filter plate with 30 mm diameter and porosity 4 is a precision sintered disc produced from borosilicate glass 3.3. Thickness is 3,5 mm with a tolerance of ± 0,8 mm; the surface is untreated and the geometry is round and centred, supporting reliable integration into laboratory filtration set-ups. Porosity grade 4 provides a defined pore structure suited to fine particle retention while maintaining practical flow rates for many analytical and preparative tasks. Supplied in packs of 10 pieces from manufacturer ROBU - Stereon, these plates are intended for use in filter crucibles, custom holders and related glassware assemblies. Borosilicate glass 3.3 offers strong chemical resistance toward common laboratory reagents together with good thermal stability. The untreated sintered surface preserves consistent filtration characteristics. Ideal for research, quality-control and routine laboratory workflows that require durable glass frit media of controlled porosity and dimensional accuracy.
This article is part of Sintered glass filter plates & discs, in Filtration.
Key features
- Pack size: 10 pc(s)
- Product type: VitraPOR® glass filter plate
- Material: Borosilicate glass 3.3
- Diameter: 30 mm
- Porosity: 4
- Thickness: 3,5 mm ± 0,8 mm
- Technical Information Sheet:
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Questions about Filter Disc, centered, 30 mm, Por. 4 Thickness 3.5 mm ± 0.8 mm
What is this article?
Filter Disc, centered, 30 mm, Por. 4 Thickness 3.5 mm ± 0.8 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.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
