Description
Qualitative filter paper, folded, 90 mm is a pre-folded laboratory filtration medium for routine qualitative separations and sample clarification. Manufactured at a basis weight of 87 g/m² with a medium filtration characteristic, the circles are suited to gravity filtration of precipitates and suspended solids where quantitative ash recovery is not required. The 90 mm diameter matches common analytical funnels used in wet chemistry, teaching laboratories, and quality-control benches. Pre-pleating helps the sheet seat evenly in the funnel cone, shortens set-up time, and supports a stable filtrate flow during everyday work. Packaged as 100 pieces, the format is convenient for high-throughput benches that need consistent disposable media without extra preparation. This qualitative grade from manufacturer filtraTECH focuses on practical particle retention and balanced throughput rather than gravimetric precision. Medium porosity offers a workable compromise between clarity of the filtrate and filtration speed for general laboratory tasks such as clarifying solutions, collecting coarse precipitates, and preparing samples ahead of further analysis. The folded discs are ready to use straight from the pack, supporting efficient, repeatable filtration workflows across research, education, and routine analytical environments.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Type: Qualitative filter paper
- Form: Folded
- Basis weight: 87 g/m²
- Filtration characteristic: Medium
- Diameter: 90 mm
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Questions about Folded qualitative filter paper, 90 mm
What is this article?
Folded qualitative filter paper, 90 mm is the article on this page. Luminix Health distributes filtraTECH for laboratory use. It sits in Filter paper, inside Filtration, in Consommables.
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 Consommables.
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.