Description
Round filter MN 439, 9 cm is a circular laboratory filter paper intended for routine solid-liquid separation and sample clarification. With a precise diameter of 9 cm, the discs fit standard funnels and holders used in analytical chemistry and general laboratory workflows. Each pack contains 100 pieces and carries a net weight of 0,11 kg together with a gross weight of 0,11 kg. The compact packaging measures 0,04 m in height, 0,16 m in width and 0,16 m in depth, giving a volume of 0,000991 m³ for convenient storage. Produced by manufacturer Macherey-Nagel in Germany (Nordrhein-Westfalen region), the non-sterile MN 439 grade supports everyday filtration tasks such as precipitate collection, solution polishing and preparatory work where medium retention is required. The round format ensures uniform contact with filter supports and simplifies handling during gravity or low-pressure vacuum filtration. These filters integrate readily into existing lab protocols without specialised equipment, offering reliable performance for teaching, research and quality-control environments that demand consistent diameter and pack size.
This article is part of Glass & quartz fibre filters, in Filtration.
Key features
- Pack size: 100 pieces
- Diameter: 9 cm
- EAN: 4046681092619
- Technical Information Sheet:
- Safety Data Sheet:
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about Glass fiber filters MN 439, 9 cm
What is this article?
Glass fiber filters MN 439, 9 cm is the article on this page. Luminix Health distributes Macherey-Nagel for laboratory use. It sits in Glass & quartz fibre filters, inside Filtration, in Lab consumables.
Glass-fibre and quartz-fibre filters are depth filters with a high dirt load, used for air sampling, for total suspended solids and in front of a membrane. They have no sharp pore-size cutoff the way a membrane does. Binderless grades matter when the filter will be weighed or heated.
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 Glass & quartz fibre filters. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, Sintered glass filter plates & discs, Syringe filters, Filter cartridges & capsules, Membrane 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. Delivery across Europe, two to five days when in stock. 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.
