Description
Qualitative paper grade 131, Ø 125 mm fluted filters are used for analytical purposes that require a low ash content. This grade supports qualitative laboratory filtration where the contribution of residual ash from the paper must remain limited. The filters are supplied fluted and ready for use, with a diameter of 125 mm that matches common funnel sizes for medium-scale sample work. Each pack provides 100 pieces, offering a convenient quantity for regular analytical routines. These papers from manufacturer Sartorius are intended for qualitative analyses in which controlled ash behaviour of the medium is important. The fluted format enlarges the effective surface area, promotes even wetting and helps maintain steady flow during separation steps. Grade 131 is selected when low-ash qualitative performance is preferred over purely technical paper grades. The compact 125 mm size suits everyday preparatory and qualitative filtration on the bench. Net pack weight is 0,098 kg, making the unit easy to store and distribute in the laboratory. Together, the low-ash qualitative paper and pre-fluted presentation streamline analytical filtration that demands both cleanliness and practical handling.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Storage temperature: Room temperature
- Grade: 131
- Diameter: 125 mm
- Filter format: Fluted filters
- Paper type: Qualitative
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Questions about Qualitative Papers/ Grade 131
What is this article?
Qualitative Papers/ Grade 131 is the article on this page. Luminix Health distributes Sartorius 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.