Description
Round filter Munktell grade 3hw, 125 mm Ø is a qualitative-technical laboratory filter paper intended for routine filtration of medium-fine crystalline precipitates. It features a smooth surface and a typical pore size of 8–12 µm, supporting consistent particle retention in everyday analytical and technical work. The wet-strength paper has a low ash content of approximately 0,1 % and a basis weight of 65 g/m². Filtration speed is specified as 20 s/10 ml, with a Herzberg filtration time of 140 s/100 ml, corresponding to roughly 430 ml/min. These properties make the grade suitable for normal qualitative and technical filtrations where moderate flow and reliable handling when wet are required. Each pack contains 100 round filters at 125 mm diameter, a format that fits common laboratory funnels and filtration assemblies. Offered by manufacturer Marienfeld, Munktell grade 3hw is a practical choice for research, quality-control and teaching laboratories that need dependable round filters for medium-fine precipitates without specialised high-purity grades. The combination of defined pore range, wet strength and low residual ash supports reproducible day-to-day filtration workflows.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 filters per box
- Grade: Munktell 3hw
- Diameter: 125 mm
- Typical pore size: 8–12 µm
- Basis weight: 65 g/m²
- EAN: 4250317316554
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Questions about Filter paper circles Munktell grade 3hw, 125 mm Ø
What is this article?
Filter paper circles Munktell grade 3hw, 125 mm Ø is the article on this page. Luminix Health distributes Marienfeld 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.