Description
Round filter 150 mm Rotband (4) is a circular laboratory filter paper designed for medium to slow filtration. The 150 mm diameter suits larger funnels and higher sample volumes in analytical chemistry, clarification and preparative laboratory work. Rotband grade (4) provides a medium-to-slow flow characteristic that favours thorough particle retention when filtrate clarity is more important than maximum speed. Supplied as a pack of 100 pieces, the format offers a convenient working stock for routine bench procedures, teaching environments and quality-control tasks. These round filters from manufacturer Witeg are cut uniformly for secure seating in funnels and easy handling during gravity filtration. They are well suited to qualitative separations, precipitate collection and standard sample-preparation steps that benefit from controlled filtration. The red-band designation is a common reference for medium-to-slow papers across many European labs. Select this 150 mm Rotband (4) option when your method requires medium-to-slow round filter paper in a practical hundred-piece pack.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Product type: Round filter paper
- Grade: Rotband (4)
- Filtration rate: Medium to slow
- Diameter: 150 mm
- Format: Circular sheets
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Questions about Round filter 150mm
What is this article?
Round filter 150mm is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Filter paper, inside Filtration, in Lab consumables.
Filter paper is a cellulose sheet of a stated retention and speed. Qualitative paper clarifies. Quantitative, ashless paper is for a precipitate that will be weighed or ashed, because the paper itself leaves almost no ash. The diameter has to match the funnel.
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 Filter paper. The catalogue is Lab consumables.
Shelves beside this one are Sintered glass filter plates & discs, 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. Articles in stock ship within 2–5 business days. 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.