Description
Filter paper 604 is a qualitative, fast-filtering round filter with a basis weight of 79 g/m² and a diameter of 90 mm. Grade 604 is intended for routine laboratory filtration where a high flow rate is required for separation of precipitates, clarification of liquids, and general sample preparation. The open paper structure supports rapid throughput while the 79 g/m² grammage provides practical handling strength during wet use. Circular discs of 90 mm fit common funnels and filtration holders used in analytical and preparatory workflows. Packs contain 100 pieces, making the format convenient for everyday bench work and teaching laboratories. These filters from manufacturer Hahnemühle are supplied as non-sterile qualitative paper for standard wet-chemistry tasks rather than sterile or quantitative ashless applications. Typical uses include qualitative analysis, rinsing and washing of precipitates, and rapid clarification steps ahead of further measurement. Consistent sheet quality helps maintain reproducible filtration behaviour across successive runs in research, quality control, and educational settings.
This article is part of Filter paper, in Filtration.
Key features
- Pack size: 100 pc(s)
- Storage temperature: 15–30 °C
- Product type: Grade 604
- Quality: Qualitative, fast
- Diameter: 90 mm
- EAN: 4011367012731
- Technical Information Sheet:
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Questions about Filter paper 604, qualitative ,fast, 79 g/sqm ,Discs 90 mm
What is this article?
Filter paper 604, qualitative ,fast, 79 g/sqm ,Discs 90 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.
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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.