90mm Medium Flow Quantitative Filter Paper (Box of 100)
The 90mm Medium Flow Quantitative Filter Paper from Eisco is a medium speed filter paper for small volume filtration in teaching and analytical laboratories. This 90mm filter paper gives you reliable 10 µm retention for routine qualitative analysis and general sample preparation.
Manufactured as an 85 gsm paper with medium filtration speed, it balances flow and clarity, making it suitable for separating fine precipitates and suspended solids in narrow funnels or small Büchner setups. The 90mm diameter discs are ideal when you work with modest sample volumes or space limited apparatus, reducing wastage compared with cutting down larger papers. Supplied in a box of 100, they are convenient for student classes and everyday QC work.
Practical Applications
– Routine qualitative filtration in small glass or plastic funnels
– Sample clarification before spectrophotometric or colourimetric analysis
– Separating fine precipitates in teaching and training experiments
– Filtration of small QC or R&D batches where solvent use is minimised
– Use in small Büchner funnels for vacuum filtration of microscale samples
Key Features
– 90mm qualitative filter paper discs for small funnels and Büchner setups
– 10 µm nominal pore size with high retentivity for fine particles
– Medium speed (approx. 85 gsm) for a good balance between flow and clarity
– Supplied as a box of 100 sheets for routine laboratory use
– Suitable for general aqueous and mild solvent systems in teaching and analytical labs
Quality & Standards
– Produced for consistent performance in education, research and QC environments
– Designed for qualitative filtration, not for gravimetric or quantitative residue analysis
– Packaged to protect papers from dust and handling damage
– Compatible with standard laboratory glassware and filtration accessories
Specifications
– Product type: Qualitative filter paper, medium speed
– Diameter: 90mm
– Nominal pore size: 10 µm
– Basis weight: Approx. 85 gsm
– Format: Round discs
– Pack size: 100 sheets (1 box)
– Brand: Eisco
