Description
Qualitative filter paper, 70 mm is a circular laboratory filter medium for routine qualitative separations at intermediate sample scale. The plain discs have a diameter of 70 mm, a basis weight of 80 g/m² and a slow filtration characteristic, suited to work that benefits from finer particle retention and a controlled flow rate. Pack size is 100 pc(s), providing a practical supply for teaching laboratories, quality-control stations and research benches using mid-size funnels. The 80 g/m² paper supports reliable handling during wet-chemistry procedures while remaining appropriate for standard qualitative clarification and precipitate isolation. This grade from manufacturer filtraTECH is intended for qualitative analysis rather than quantitative determinations where ash content is critical. Common applications include clarifying solutions, collecting precipitates for identification tests, and preparatory filtration steps ahead of further analytical work. The slow filtration profile is helpful when suspended solids are fine or when a more deliberate throughput is desired. Match funnel or holder dimensions to the 70 mm diameter for correct seating and dependable day-to-day filtration performance in the laboratory.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Product type: Qualitative filter paper
- Form: Plain discs
- Diameter: 70 mm
- Basis weight: 80 g/m²
- Filtration characteristic: Slow
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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 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.