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Whatman™ Grade 1 Qualitative Filter Paper – Round Discs in Various Diameters

Whatman™ Grade 1 Qualitative Filter Paper – Round Discs in Various Diameters
Product Code: F10400
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Specifications: (see all)
Filter type
Paper filter (round disc)
Filter material
High-purity cellulose
Filter diameter (mm)
From 10 mm to 400 mm
Housing diameter for syringe filters (mm)
Not applicable
Pore size (µm)
11 µm
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The Cytiva Whatman™ Grade 1 Filter Paper is a world-renowned standard for qualitative laboratory filtration. Manufactured from high-quality cellulose, these round filter circles provide an excellent balance between filtration speed and particle retention.

Available in a wide range of diameters from 10 mm to 400 mm, the Whatman Grade 1 papers are suitable for numerous laboratory applications – from filtering small volumes in microbiology to large-scale use in chemistry and quality control.

With uniform pore structure and consistent performance, Whatman Grade 1 filter paper is trusted worldwide in research, education, pharmaceuticals, and industrial laboratories. Each pack contains 400 filter circles, making it a cost-effective solution for everyday use.

Tags: Filters

Filters
Filter type
Paper filter (round disc)
Filter material
High-purity cellulose
Filter diameter (mm)
From 10 mm to 400 mm
Housing diameter for syringe filters (mm)
Not applicable
Pore size (µm)
11 µm
Pore size range (µm)
Medium porosity
Filter layer thickness (mm)
0.18 mm (180 µm)
Filtration area (cm²)
Depends on diameter (from 0.8 cm² to 1256 cm²)
Filtration rate (ml/min)
57 mL/min (water)
Maximum pressure (bar)
Solvent compatibility
Water, weak acids, bases, limited organic solvents
Resistance to acids and alkalis
Good for weak solutions
High temperature resistance (°C)
Up to 125 °C (limited use)
Autoclavability
Sterility
Non-sterile
Application
Qualitative analysis, microbiology, chemistry, agriculture, food industry
Hydrophilic / hydrophobic properties
Hydrophilic
Syringe compatibility
Sealing tightness
Color coding
None
Housing availability
None (filter paper only)
Single-use / reusable
Single-use
Packaging
From 100 to 500 pcs/pack (depending on diameter)
Dimensions (L×W×H)
Depend on diameter (10 mm – 400 mm)
Country of origin
United Kingdom
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