Glass Fiber Filter Discs, 1.0um Nominal Retention, 25mm, Binder-Free, Nonsterile, 100/Pk
GVS SKU: FP025DAM10GLFC01

Featuring a binder-free borosilicate glass microfiber depth medium, these 25mm filter discs deliver 1.0um nominal particle retention with a 99.998% DOP retention rating for demanding air monitoring and analytical work. The 100% borosilicate construction contains no binders, eliminating binder extractables during solvent filtration and gravimetric analysis. With a media thickness of 700um, the depth structure provides high particulate loading capacity combined with low filter resistance, making it well suited to heavily loaded samples and high flow rates. Each box contains 100 discs.

Key Glass Fiber Media Characteristics

• Hydrophilic depth medium: The 100% borosilicate glass microfiber structure wets readily and captures particles throughout its depth rather than at a single surface plane.
• 1.0um nominal retention: Provides fine nominal particle retention with a 99.998% DOP retention efficiency, not an absolute pore size rating.
• Binder-free composition: Contains no bonding resin, avoiding binder extractables that can interfere with gravimetric and analytical determinations.
• High particulate loading: The large internal surface area provides outstanding impurity retention capacity while maintaining low filter resistance.
• Thermally robust: Binder-free borosilicate glass microfiber withstands temperatures up to 500 degrees C, supporting high-temperature gravimetric procedures.

Key Construction Characteristics

• Format: Disc, 25mm diameter.
• Media thickness: 700um borosilicate glass microfiber.
• Sterility: Nonsterile.
• Pack: 100 discs per box.

This depth medium delivers consistent, reproducible retention for air pollution monitoring, suspended solids analysis, and sample prefiltration. The binder-free borosilicate composition preserves sample integrity in gravimetric and trace analytical work where extractables must be minimized. Used as a prefilter, it extends the service life of downstream membranes by capturing heavy particulate loads upstream.

Color

White

Diameter

25mm

Grade

DAM 10

Material

Glass Fiber (GF)

Maximum Operating Temperature (°C)

500

Membrane Color

White

Membrane Thickness (µm)

700

Nominal Thickness (µm)

700

Pack Count

100

Particle Retention

1.0um nominal (99.998% DOP retention)

Pore Size (µm)

1

Sterility

Nonsterile

Wettability

Hydrophilic

• Air Pollution Monitoring The binder-free borosilicate medium captures airborne particulates for gravimetric determination and atmospheric pollution control measurements.
• Suspended Solids Analysis The 1.0um nominal retention depth medium collects suspended solids in water, wastewater, and industrial samples for gravimetric quantification.
• Gravimetric Analysis The binder-free composition avoids extractables, supporting accurate weight-based analytical determinations.
• Membrane Prefiltration Used upstream of a final membrane, the high-loading depth medium traps coarse particulates to extend downstream filter life.
• Sample Clarification The depth structure provides low-cost clarification of heavily loaded aqueous samples ahead of analysis.
• Solvent Filtration The binder-free borosilicate matrix filters solvents without introducing resin extractables into the filtrate.