Glass Fiber Filter Discs, 1.2um, 25mm, Binder Free, Nonsterile, 100/Pk
GVS SKU: FP025DMEFCGLFC01

Featuring a binder-free borosilicate glass fiber depth medium with a 1.2um nominal particle retention, these 25mm filter discs deliver fast, high-capacity clarification of heavily loaded aqueous and solvent samples. The depth structure traps particulates throughout the media rather than only at the surface, providing high dirt-holding capacity with low resistance to flow. With a media thickness of 0.26mm and a naturally hydrophilic surface, each disc wets out readily and maintains consistent flow during demanding filtrations. The binder-free construction avoids extractables, making these discs well suited to gravimetric and analytical determinations.

Key Glass Fiber Media Characteristics

• Naturally hydrophilic borosilicate medium wets out quickly for consistent aqueous and solvent filtration.
• 1.2um nominal particle retention delivers fine retention while maintaining fast flow rates.
• Depth-filter structure provides high particulate loading capacity and resistance to premature clogging.
• Binder-free composition minimizes extractables for gravimetric and analytical work.
• Biologically inert and highly resistant to oxidizing agents and weak acids, with the option to use the disc as a prefilter or as a standalone clarification medium.

Key Construction Characteristics

• Diameter: 25mm circle format.
• Media thickness: 0.26mm.
• Sterility: Nonsterile.
• Pack: 100 discs per pack.

These glass fiber discs provide reliable, repeatable performance across high-particulate filtration tasks, protecting downstream membranes and extending final-filter life. The pure borosilicate, binder-free medium supports sample integrity in gravimetric and analytical determinations. Their high loading capacity makes them an economical choice for clarifying difficult or contaminated samples.

Color

White

Diameter

25mm

Grade

DMEFC

Material

Glass Fiber (GF)

Membrane Color

White

Membrane Thickness (µm)

260

Mesh Format

Circle

Nominal Thickness (µm)

260

Pack Count

100

Particle Retention

1.2 um

Pore Size (µm)

1.2

Prefilter (Yes/No)

Yes

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Prefiltration Protects and extends the life of downstream membrane filters by capturing large particulates from heavily loaded samples.
• Sample Clarification Provides low-cost clarification of turbid or particulate-laden aqueous and solvent samples.
• Gravimetric Analysis Binder-free borosilicate construction minimizes extractables for accurate gravimetric determinations.
• HPLC Sample Prep Removes fine particulates from samples and solvents prior to chromatographic analysis.
• Environmental Monitoring Suitable for water and air pollution sample preparation and suspended solids work.
• Biochemical Filtration Supports protein filtration and clarification of biological solutions.