Glass Fiber Filter Discs, 2.7um, 47mm, Binder-Free, Nonsterile, 100/Pk
GVS SKU: FP047DAM27GLFC01

Featuring a binder-free borosilicate glass fiber depth medium, these 47mm filter discs deliver fast flow and high particulate loading for air monitoring, prefiltration, and gravimetric analysis. With a 2.7um nominal particle retention and a thick 0.53mm depth structure, the medium captures fine particulates while maintaining low filtration resistance. Because no binder resin is used, the filter avoids binder extractables that could interfere with solvent filtration or gravimetric determinations. Each pack contains 100 nonsterile discs.

Key Glass Fiber Media Characteristics

• Naturally hydrophilic borosilicate glass fiber wets readily for aqueous and air sampling work.
• 2.7um nominal particle retention provides fine depth capture rather than absolute screen retention.
• High particulate loading from the thick depth structure suits heavily loaded samples and high-volume filtration.
• Binder-free construction avoids resin extractables for solvent filtration and gravimetric accuracy.
• Biologically inert and chemically resistant to oxidizing agents and weak acids.

Key Construction Characteristics

• Material: 100% borosilicate glass fiber, binder-free.
• Diameter: 47mm disc format.
• Nominal thickness: 0.53mm depth medium.
• Sterility: Nonsterile.
• Pack: 100 discs per box.

The depth medium combines fast flow with fine retention to deliver reliable, repeatable filtration across air and aqueous samples. By trapping coarse particulates ahead of finer membranes, it protects downstream filters and extends their service life. Binder-free borosilicate glass preserves sample integrity for sensitive gravimetric and analytical measurements.

Diameter

47mm

Grade

DAM27

Material

Glass Fiber (GF)

Membrane Thickness (µm)

530

Mesh Format

Circle

Pack Count

100

Particle Retention

2.7

Pore Size (µm)

2.7

Prefilter (Yes/No)

Yes

Sterility

Nonsterile

Wettability

Hydrophilic

Whatman Equivalent

Grade GF/D

• Air Pollution Monitoring The thick borosilicate depth medium captures airborne particulates for atmospheric sampling and gravimetric determination.
• Membrane Prefiltration Positioned ahead of finer membranes, the 2.7um medium traps coarse particulates to protect and extend downstream filter life.
• Gravimetric Analysis Binder-free construction avoids extractable resin, supporting accurate weighing of collected particulate residue.
• Suspended Solids and Wastewater Sample Prep Fast flow and high loading capacity handle heavily loaded aqueous samples efficiently.
• Solvent Filtration Chemically resistant glass fiber clarifies solvents without introducing binder contaminants.
• General Sample Clarification High dirt-handling capacity makes the disc a low-cost clarifier for difficult-to-filter liquids.