Description
Nalgene™ Water Quality Membrane is a white nylon (polyamide, PA) membrane filter with a pore size of 0,2 µm and a 47 mm membrane diameter. The gridded, sterile membrane is intended for water quality testing and supports clear visual counting of retained colonies after filtration. Autoclavable construction allows controlled laboratory handling where thermal decontamination of hardware is part of the workflow. Packs contain 100 membranes per carton, providing a convenient unit size for routine microbiological water analysis. Nylon membrane chemistry combined with the 0,2 µm pore rating suits fine filtration steps in environmental and quality-control laboratories. The white gridded surface improves contrast during colony enumeration on standard 47 mm holders. Available from manufacturer Thermo Scientific - Laboratory Plastics as part of the Nalgene™ water quality membrane line, the product aligns with established membrane-filter methods for water examination. Gross weight is approximately 0,091 kg per packaged unit. Laboratories seeking sterile, gridded nylon membranes at 0,2 µm and 47 mm will find a practical format for serial testing campaigns.
This article is part of Membrane filters, in Filtration.
Key features
- Pack size: 100 pc(s)
- Brand: Nalgene™
- Material: Polyamide (PA) / nylon
- Pore size: 0,2 µm
- Diameter: 47 mm
- Membrane type: Gridded, white
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Questions about Nalgene™ Membrane and Prefilter Disks
What is this article?
Nalgene™ Membrane and Prefilter Disks is the article on this page. Luminix Health distributes Thermo Scientific - Laboratory Plastics for laboratory use. It sits in Membrane filters, inside Filtration, in Lab consumables.
A membrane filter is the disc itself, without a syringe housing. Pore size, polymer and diameter are the specification, and the disc has to sit in a holder. Gridded membranes are for counting colonies. A membrane and a filter paper of the same diameter are not interchangeable.
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 Membrane filters. The catalogue is Lab consumables.
Shelves beside this one are Filter paper, Sintered glass filter plates & discs, Syringe filters, Filter cartridges & capsules, 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.