Glass Fiber Filter Discs, 0.7um, 47mm, Binder-Free, Nonsterile, 100/Pk
GVS SKU: FP047DSLFFGLFC01

Featuring a 100% borosilicate glass fiber depth medium produced without binders, these 47mm filter discs deliver fine 0.7um nominal particle retention with the fast flow rates characteristic of a depth filter. The hydrophilic, binder-free construction avoids binder extractables, making these discs well suited to solvent filtration and gravimetric analysis where sample purity and weight stability are critical. Each disc measures 47mm in diameter and is supplied nonsterile in packs of 100.

Key Glass Fiber Media Characteristics

• Naturally hydrophilic borosilicate glass microfiber medium that wets out readily with aqueous and solvent samples.
• Binder-free composition designed to avoid binder extractables during solvent filtration and gravimetric determinations.
• Depth structure with large surface area provides high impurity retention capacity combined with low filter resistance.
• Biologically inert, autoclavable, and highly resistant to oxidizing agents and weak acids.
• High particulate loading capacity that protects and extends the life of downstream final filters.

Key Construction Characteristics

• Material: 100% borosilicate glass fiber, binder-free depth medium.
• Nominal retention: 0.7um.
• Diameter: 47mm circle format.
• Sterility: Nonsterile.
• Pack: 100 discs per pack.

These discs provide consistent, repeatable retention across high particulate loads while maintaining sample integrity. The pure borosilicate, binder-free medium minimizes contamination of the filtrate, supporting accurate analytical and gravimetric results. Fast flow with high loading capacity makes them an efficient choice for clarifying heavily loaded samples or prefiltering ahead of membrane filtration.

Color

White

Diameter

47mm

Grade

FF

Material

Glass Fiber (GF)

Maximum Operating Temperature (°C)

500

Mesh Format

Circle

Pack Count

100

Particle Retention

0.7um (nominal)

Pore Size (µm)

0.7

Sterility

Nonsterile

Wettability

Hydrophilic

• Gravimetric Analysis The binder-free borosilicate medium maintains weight stability without binder extractables for accurate gravimetric determinations.
• Membrane Prefiltration High particulate loading capacity traps large particles to protect and extend the life of downstream final membrane filters.
• Solvent Filtration Binder-free construction avoids extractables when filtering organic solvents and reagents.
• Suspended Solids Analysis Fine 0.7um nominal retention captures fine particulates for water and wastewater suspended solids testing.
• HPLC Sample Prep The high-retention depth medium clarifies samples and solvents prior to chromatographic analysis.
• Sample Clarification Used alone as a low-cost clarifier for heavily loaded aqueous and biochemical samples.