Description
Folded filter MN 621 1/4, 38,5 cm is a large-diameter pleated filter paper for laboratory gravity filtration where higher throughput or bulk sample handling is needed. The MN 621 1/4 grade filter measures 38,5 cm (385 mm) across and is supplied pre-folded so it can be opened directly into a wide funnel. Each package holds 100 pieces, providing a practical stock level for busy preparation or production-support laboratories. The folded geometry increases usable surface area and promotes even seating against the funnel wall during solids retention or liquid clarification. Available from manufacturer Macherey-Nagel, this size complements smaller MN 621 1/4 formats when scale-up of the same filter type is required. Net weight of the pack is 1,62 kg. Filters are non-sterile and intended for standard laboratory use rather than sterile processing. Consistent diameter specification and pack quantity support method transfer, documentation, and reliable replenishment across filtration benches handling larger volumes.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Product type: Folded filter paper
- Grade: MN 621 1/4
- Diameter: 385 mm
- EAN: 4046681015274
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Questions about Folded Filter Papers MN 621 1/4, 38.5 cm
What is this article?
Folded Filter Papers MN 621 1/4, 38.5 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.
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.