Macherey-Nagel MN 85/70 BF glass fibre filter paper circle, binder-free, 0.6 µm (25–270 mm), 150 mm
€122.40
% Manufacturer's RRP: €153.00 20% below manufacturer's RRP
- Premium glass fibre filter paper circle (variable: 25 mm to 270 mm)
- Properties: Binder-free (BF) / 100 % borosilicate
- Temperature resistance: Up to +500 °C (ideal for gravimetry)
- Retention capacity: 0.6 µm (fine)
- Chemically and biologically completely inert
- Package contents: 100 pieces
Product information "Macherey-Nagel MN 85/70 BF glass fibre filter paper circle, binder-free, 0.6 µm (25–270 mm), 150 mm"
Maximum purity for critical analyses: MN 85/70 BF glass fibre filter paper circles
MACHEREY-NAGEL’s MN 85/70 BF glass fibre round filters are the premium choice for analytical filtration in the laboratory. The key abbreviation ‘BF’ stands for ‘binder-free’. These filters consist of 100 % pure borosilicate glass fibres, without any addition of organic adhesives or binders.
This absolute purity makes the filters extremely chemically resistant and thermally stable. They do not leach, do not distort your analytical results with organic extracts, and are biologically inert.
Features and benefits
- Extreme temperature resistance: As there are no organic binders that can burn, the MN 85/70 BF filters can withstand temperatures of up to 500 °C. This makes them indispensable for the gravimetric determination of suspended solids (e.g. residue on ignition in water analysis).
- High chemical resistance: They resist most acids, alkalis and aggressive solvents (with the exception of hydrofluoric acid and highly concentrated alkalis).
- Fine retention capacity: With a nominal retention rating of 0.6 µm, they reliably filter even the finest precipitates and turbidity from your samples.
- Fast filtration: Despite their fine pore structure, glass fibre filters offer an excellent flow rate and are less prone to rapid clogging than comparable cellulose filters.
Areas of application
- Water and wastewater analysis: Gravimetric determination of total suspended solids (TSS) and residue on ignition.
- Environmental analysis: Air pollution monitoring and exhaust gas control.
- Biochemistry: Cell harvesting, protein filtration and radioimmunoassays (RIA).
- Clarifying filtration: Of aggressive chemicals or hot media.
Technical data
- Grade: MN 85/70 BF
- Format: Filter paper circle
- Retention capacity: 0.6 µm
- Binder: No (binder-free / BF)
- Grammage: 75 g/m²
- Thickness: 0.35 mm
- Filtration speed: approx. 15 s
- Max. temperature resistance: 500 °C
- Material: 100 % borosilicate glass fibre
- Colour: White
Scope of delivery
-
100 x MACHEREY-NAGEL MN 85/70 BF glass fibre filter paper circles (diameter as selected)
Individual requirements & accessories
For filters with a diameter of 47 mm and 50 mm, we offer vacuum filtration manifolds made of stainless steel or glass, as well as the appropriate vacuum pumps. Please contact our procurement service for a complete solution for water analysis.
| Diameter: | 150 mm |
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