Description
Fluted filter MN 619 1/4, 9 cm is a pre-folded filter paper for laboratory gravity filtration where a larger working diameter is required. At 90 mm (9 cm), the disc offers ample surface area for higher sample volumes or denser suspensions, while the fluted profile maintains open flow paths and reduces clogging compared with a flat sheet. The MN 619 1/4 type is supplied already pleated, enabling quick placement in standard funnels and consistent seating during filtration. Each unit pack holds 100 pieces, convenient for multi-sample series in chemical, environmental, and industrial laboratories. These filters from Macherey-Nagel are non-sterile products for general laboratory use. The 9 cm size pairs well with mid- to large-size funnels used in preparative work and routine clarification. Stable diameter and fold pattern support method standardisation across operators and batches. Typical applications include separation of precipitates, clarification of process or analytical solutions, and preparation of filtrates prior to further testing—always matched to the solvent compatibility and retention needs of the specific procedure.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Product type: Fluted filter MN 619 1/4
- Diameter: 90 mm
- EAN: 4046681016097
- Technical Information Sheet:
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Questions about Folded Filter Papers MN 619 1/4, 9 cm
What is this article?
Folded Filter Papers MN 619 1/4, 9 cm is the article on this page. Luminix Health distributes Macherey-Nagel 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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.