Glass microfiber filter, flat disc, binder‑free, grade GF‑A | AllFilter
| SKU | Ø | Price | Available | Amount Basket | ||
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| FR.AFA1-25-100 | 25 mm |
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In stock |
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| FR.AFA1-47-100 | 47 mm |
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In stock |
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| FR.AFA1-55-100 | 55 mm |
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In stock |
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| FR.AFA1-90-100 | 90 mm |
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In stock |
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Binder‑free: improved compatibility with many analytical methods and solvents.
1.6 µm porosity: excellent retention of fine particles in gravity or vacuum filtration.
GF‑A glass microfiber: high loading capacity and very good dimensional stability.
What is a GF-A glass microfiber filter used for?
A GF-A glass microfiber filter is used for the filtration of fine particles and suspended matter in many laboratory applications. It is suitable for gravimetric analysis, sample clarification, certain environmental filtrations, and prefiltration before tighter membranes.
What are the benefits of a binder-free GF-A filter?
A binder-free GF-A filter offers good chemical and analytical compatibility and helps reduce contamination risks associated with added binders. It is a relevant choice for applications where filter media cleanliness is important.
In which fields is a GF-A filter used?
This type of filter is commonly used in chemistry laboratories, quality control, environmental work, routine analysis, and in some clarification or prefiltration operations. It is appreciated for its versatility and ease of use.
Is this filter suitable for suspended solids filtration?
Yes. A GF-A filter is suitable for retaining particles and suspended matter in many routine laboratory applications, especially when a good balance between filtration speed and loading capacity is required.
Can this filter be used for gravity or vacuum filtration?
Yes. GF-A type glass microfiber filters are generally used for both gravity filtration and vacuum filtration, depending on the setup, the sample volume, and the nature of the sample.
Why choose a glass microfiber filter?
Glass microfiber is valued for its good retention capacity, its structure suited to laboratory filtration, and its frequent use in clarification, prefiltration, and gravimetric analysis. It is a classic and widely used laboratory solution.
Is this filter suitable for prefiltration?
Yes. GF-A can be used as a prefilter before a finer medium or membrane, helping reduce particle load upstream and extend the service life of the final filtration medium.
What formats are usually available for this type of filter?
Glass microfiber filters are usually supplied as flat discs in several diameters to fit standard laboratory filter holders and funnels. Exact dimensions depend on the specific marketed reference.
What is the usual packaging format?
This type of filter is generally supplied in packs of discs suitable for regular laboratory use. The exact packaging should match the information shown on the AllChimie product page.
Are there cross references for this GF-A filter?
Yes. AllFilter FR.AFA1 may be associated with several market references, including Cytiva/Whatman GF/A, Schleicher & Schuell GF50 / 31, CHMLAB GF1, Sterlitech A, Advantec GA-55, Ahlstrom-Munksjö 111, MFS MGA, and Merck Millipore APFA, according to the cross-reference information available in our database.
These correspondences are provided for identification purposes only to help users locate comparable product types or applications. They do not constitute a contractual equivalence, a guarantee of perfect compatibility, or any claim of common origin.
All trademarks mentioned are the property of their respective owners and are not owned by AllChimie. Users remain responsible for verifying technical suitability for their intended application, especially regarding dimensions, pore size, chemical compatibility, performance, and operating conditions.
| Conditioning | Box of 100 filters |
| Porosity | 1.6 µm |
| Type | Flat discs |
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Technical features
Type: Glass microfiber filter, flat disc, binder‑free
Grade: GF‑A Weight (DIN 53104): 52 g/m² Thickness: 0.26 mm Porosity (mean pore size): 1.6 µm Filtration speed (DIN 53137): 60 s Burst strength: 20 kPa Filtration speed: Medium to slow, high retention capacity Retention range: Fine particles, suspended solids Filtration type: Gravity or vacuum Available diameters (mm): 25, 47, 55, 90 Typical applications: - Gravimetric determination of suspended solids - Filtration of water, effluents and aqueous samples - Pre‑filtration before fine membrane filters - Quality control in environmental, chemical and industrial labs Shape: Flat discs Packaging: Pack of discs (typically 100, to be specified per child SKU) Brand: AllFilter |