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Thumbnail Filmstrip of Glass Fiber Filter Discs, 1.5um Retention, 90mm, Binder-Free, Nonsterile, 100/Pk Images
Featuring a binder-free borosilicate glass microfiber depth medium, these 90mm filter discs deliver a 1.5um nominal particle retention rating for demanding gravimetric and clarification work. The naturally hydrophilic structure wets out readily with aqueous samples, while the depth matrix captures fine particulates throughout its thickness rather than at a single surface, providing high dirt-holding capacity at fast flow rates. Because the medium contains no binder, it minimizes extractables that could interfere with gravimetric and analytical determinations.
Key Glass Fiber Media Characteristics
- Binder-free borosilicate construction avoids binder extractables for accurate gravimetric and solvent filtration.
- Hydrophilic depth medium wets quickly and retains particles throughout the matrix for high loading capacity.
- 1.5um nominal particle retention suits heavily loaded aqueous samples where membrane prefiltration is needed.
- Fast flow with low resistance handles high particulate loads without rapid clogging.
- Chemically robust glass fiber is biologically inert and resistant to weak acids and oxidizing agents.
Key Construction Characteristics
- Disc format in a 90mm diameter for standard filtration funnels and holders.
- Nonsterile for general laboratory filtration and sample preparation.
- Packaged 100 discs per box for routine, high-throughput use.
The binder-free borosilicate medium maintains consistent retention and flow across samples, supporting reproducible results in suspended solids and clarification work. Its high loading capacity protects downstream membranes and extends filtration runs, preserving sample integrity from collection through analysis.
- Diameter
- 90mm
- Grade
- DFAAH
- Material
- Glass Fiber (GF)
- Mesh Format
- Circle
- Pack Count
- 100
- Pore Size (µm)
- 1.5
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Total Suspended Solids Analysis Captures suspended particulates in water and wastewater samples for gravimetric TSS determinations.
- Wastewater Analysis Clarifies heavily loaded effluent samples ahead of analytical measurement.
- Membrane Prefiltration Removes coarse particulates to protect and extend the life of downstream final membranes.
- Atmospheric Pollution Control Collects airborne particulate matter for environmental monitoring.
- Cell Culture Filtration Provides clarification of particulate-laden culture samples.
- General Sample Clarification Delivers low-cost, high-capacity clarification of turbid aqueous samples prior to analysis.