Your Cart (0)
Thumbnail Filmstrip of Glass Fiber Filter Paper Discs, 1.5um Retention, 50mm, Binder Free, Nonsterile, 100/Pk Images
Featuring a binder-free borosilicate glass microfiber depth medium, these 50mm filter discs deliver fine particle retention down to a 1.5um nominal rating while maintaining the high loading capacity characteristic of a glass fiber matrix. The 0.28mm thick medium operates as a slow-flow depth filter, trapping particulates throughout its cross section rather than at a single surface, which makes it well suited to heavily loaded aqueous samples. With no organic binder present, the medium avoids binder extractables that can interfere with gravimetric and analytical determinations.
Key Glass Fiber Media Characteristics
- Composed of 100% borosilicate glass microfiber for biologically inert, low-background filtration
- Binder-free construction recommended for solvent filtration, gravimetric analysis, and analytical determinations to avoid binder extractables
- Nominal particle retention of 1.5um, capturing very fine particulates through depth filtration
- Depth structure provides high impurity retention capacity combined with low filter resistance for high particulate loads
- Highly resistant to oxidizing agents and weak acids, and suitable for use as a prefilter to protect downstream membranes
Key Construction Characteristics
- 50mm diameter circle format
- 0.28mm nominal media thickness
- Slow flow speed for fine retention
- Hydrophilic, naturally wetting medium
- Supplied nonsterile, 100 discs per pack
The depth medium provides reliable, reproducible retention of fine suspended solids across high-volume aqueous filtrations. Its binder-free borosilicate composition preserves sample integrity for gravimetric and analytical work, while the high loading capacity helps extend the service life of downstream final filters.
- Color
- White
- Diameter
- 50mm
- Flow Speed
- Slow
- Grade
- DFAAH
- Material
- Glass Fiber (GF)
- Membrane Thickness (µm)
- 280
- Mesh Format
- Circle
- Nominal Thickness (µm)
- 280
- Pack Count
- 100
- Particle Retention
- 1.5
- Pore Size (µm)
- 1.5
- Prefilter (Yes/No)
- Yes
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Whatman Equivalent
- GF6
- Total Suspended Solids Analysis The 1.5um retention and high loading capacity make these discs suitable for capturing suspended solids in water and wastewater gravimetric determinations.
- Wastewater and Water Analysis Binder-free borosilicate construction supports clean filtration of suspended solids in environmental water samples.
- Gravimetric Determinations Absence of organic binder avoids extractables, supporting accurate weight-based analytical measurements.
- Atmospheric Pollution Control The fine-retention depth medium is appropriate for collecting fine particulates in air monitoring applications.
- Prefiltration High particulate loading capacity allows these discs to protect and extend the life of downstream membrane filters.
- Cell Culture Sample Prep The biologically inert glass fiber medium is suitable for filtration of algae, bacteria, and protein-containing cultures.