Your Cart (0)
Thumbnail Filmstrip of Glass Fiber Filter Discs, 1.5um Retention, 21mm, Binder-Free, Slow Flow, 100/Pk Images
Featuring a binder-free borosilicate glass microfiber depth medium, these 21mm filter discs deliver 1.5um nominal particle retention with a slow flow rate and a nominal thickness of 0.26 to 0.28mm. The naturally hydrophilic glass fiber matrix provides a large internal surface area that captures fine particulates throughout the depth of the medium, making it well suited to heavily loaded aqueous samples. Because the discs contain no binder, they avoid binder extractables and are appropriate for gravimetric and analytical determinations.
Key Glass Fiber Media Characteristics
- Binder-free borosilicate construction eliminates binder extractables, supporting solvent filtration and gravimetric analysis.
- Depth filtration structure with a large surface area provides high impurity retention capacity combined with low filter resistance.
- Naturally hydrophilic medium wets readily with aqueous samples for consistent flow.
- 1.5um nominal retention with slow flow balances fine particle capture against throughput.
- Biologically inert and autoclavable, with resistance to oxidizing agents and weak acids.
Key Construction Characteristics
- Format: 21mm circular filter discs.
- Nominal thickness: 0.26 to 0.28mm.
- Sterility: Nonsterile.
- Pack: 100 discs per pack.
These discs deliver dependable particulate removal and clarification across high-load samples while protecting downstream membranes when used as a prefilter. The high loading capacity helps maintain flow even with challenging samples, preserving sample integrity for subsequent analysis.
- Color
- White
- Diameter
- 21mm
- Flow Speed
- Slow
- Grade
- DFAAH
- Material
- Glass Fiber (GF)
- Mesh Format
- Circle
- Pack Count
- 100
- Particle Retention
- 1.5
- Pore Size (µm)
- 1.5
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Suspended Solids Analysis Captures suspended solids in water and wastewater samples for total suspended solids determination.
- Sample Prefiltration Protects and extends the life of downstream membranes by removing heavy particulate loads upstream.
- Environmental Sample Prep Supports atmospheric and water pollution monitoring where high particulate loading is expected.
- Sample Clarification Provides low-cost clarification of heavily loaded aqueous samples using depth filtration.
- Gravimetric Analysis The binder-free construction avoids extractables, making the discs suitable for gravimetric and analytical determinations.
- Cell Culture Filtration Suitable for clarifying cellular culture and protein-containing samples.