Description
Qualitative filter paper Grade 1291, 90 mm serves analytical purposes and general laboratory work when gravimetric analyses are not required. Supplied as 1 piece at 90 mm diameter, with a net weight of 0,054 kg and a gross weight of 0,099 kg, it is a convenient single-unit format for targeted filtration needs. Wet strength enables use in pressure or vacuum filtration, and the filter cake can be removed effortlessly with a water jet or spatula when required. Grade 1291 qualitative paper from manufacturer Sartorius supports sample clarification, preparatory filtration and other routine laboratory separations that do not call for quantitative ash-free performance. Suitable for research, teaching and quality-control benches, this non-sterile medium is manufactured in Germany and stored at room temperature. The 90 mm Grade 1291 format provides a practical wet-strength qualitative option for standard analytical and general laboratory filtration tasks.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 1 pc(s)
- Storage temperature: Room temperature
- Grade: 1291
- Diameter: 90 mm
- Sterility: Non-sterile
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Questions about Qualitative Papers/ Grade 1291
What is this article?
Qualitative Papers/ Grade 1291 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.