Description
Qualitative filter paper, 70 mm is a medium laboratory filter paper with a basis weight of 87 g/m², developed for routine qualitative filtration tasks in analytical, educational, and research settings. The 70 mm circular format matches widely used funnels and filtration assemblies for clarifying solutions, isolating precipitates, and preparing samples prior to downstream analysis. Medium filtration characteristics provide a workable compromise between retention and throughput, making the paper appropriate for standard gravity filtration on the open bench. Packs of 100 pieces support regular laboratory consumption and reduce the need for frequent restocking. This qualitative filter paper from manufacturer filtraTECH serves general chemistry, life-science, and quality-control applications where ashless quantitative grades are unnecessary. The 87 g/m² basis weight contributes to manageable wet strength and handling during filtration of aqueous media and many common organic solvents. Select the 70 mm medium qualitative discs when consistent everyday separation performance and straightforward integration into existing lab methods are the primary requirements.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Product type: Qualitative filter paper
- Diameter: 70 mm
- Basis weight: 87 g/m²
- Filtration grade: medium
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Questions about Qualitative filter paper, 70 mm
What is this article?
Qualitative filter paper, 70 mm is the article on this page. Luminix Health distributes filtraTECH 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.