Description
Filter paper 551 is a technical-grade round filter paper supplied as black discs with a basis weight of 95 g/m² and a diameter of 70 mm. Designed for slow filtration, this grade supports controlled separation work where a measured flow rate is preferred over rapid throughput. The circular format fits standard laboratory funnels and holders used for routine technical filtration tasks. Each pack contains 100 pc(s) of ready-to-use round filters, simplifying stock handling and bench replenishment. The black paper surface aids visual contrast when collecting or inspecting retained solids during qualitative technical work. With its defined 95 g/m² weight and slow filtration character, grade 551 offers a consistent sheet for general laboratory and technical filtration setups that call for a darker filter medium. These round filters from manufacturer Hahnemühle are specified as non-sterile technical filter paper for everyday laboratory use. The 70 mm diameter suits smaller funnels and compact filtration assemblies, while the uniform round cut supports reproducible placement and handling across repeated preparations.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Storage temperature: 15–30 °C
- Diameter: 70 mm
- Filtration speed: Slow
- Colour: Black
- EAN: 4011367017156
- Technical Information Sheet:
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Questions about Filter paper 551, black ,slow 95 g/sqm ,Discs 70 mm
What is this article?
Filter paper 551, black ,slow 95 g/sqm ,Discs 70 mm is the article on this page. Luminix Health distributes Hahnemühle 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.