Glass Fiber Membrane Disc Filters, 1.0um, 90mm, Binder-Free, Nonsterile, 100/Pk
GVS SKU: 1212763

Featuring a binder-free borosilicate glass fiber depth medium, these 90mm discs deliver fast, high-capacity filtration with a 1.0um nominal particle retention. The hydrophilic structure wets out readily with aqueous samples, while the absence of an organic binder eliminates leachable extractables that can compromise sensitive analytical and gravimetric determinations. The open depth matrix captures heavy particulate loads across a large surface area, making these discs well suited to clarifying difficult samples or protecting downstream membranes.

Key Glass Fiber Media Characteristics

• Hydrophilic borosilicate construction wets readily for efficient aqueous filtration without surfactants or pretreatment.
• 1.0um nominal particle retention traps fine particulates while maintaining high flow through the depth structure.
• Binder-free design avoids binder extractables, supporting solvent filtration and gravimetric analysis where sample purity is critical.
• High particulate loading capacity from the large internal surface area extends throughput on heavily loaded samples.
• Biologically inert and chemically resistant to oxidizing agents and weak acids, with autoclavable construction for repeated use.

Key Construction Characteristics

• Diameter: 90mm disc format compatible with standard filter holders and funnels.
• Media: 100% borosilicate glass fiber, binder-free.
• Sterility: supplied nonsterile, 100 discs per pack.
• Thermal tolerance: binder-free media withstands operating temperatures up to 500 degrees C.

These discs provide consistent retention and reliable flow across demanding aqueous and solvent applications. The binder-free borosilicate medium preserves sample integrity by minimizing extractables and media migration. Whether used alone for low-cost clarification or as a prefilter ahead of a final membrane, they deliver dependable, repeatable performance.

Color

White

Diameter

90mm

Material

Glass Fiber (GF)

Maximum Operating Temperature (°C)

500

Pack Count

100

Pore Size (µm)

1.0

Sterility

Nonsterile

Wettability

Hydrophilic

• Gravimetric Analysis Binder-free borosilicate media eliminates leachable extractables for accurate weight-based determinations.
• Solvent Filtration Chemically resistant glass fiber clarifies organic solvents without introducing binder contaminants.
• Sample Prefiltration High particulate loading capacity protects downstream membranes by trapping coarse and fine particulates.
• Environmental Sample Prep Suited to water and air pollution monitoring where heavily loaded samples require robust depth filtration.
• Suspended Solids Recovery The 1.0um depth matrix captures fine particulates for solids analysis in water and wastewater.
• Sample Clarification Provides low-cost clarification of difficult aqueous samples at high flow rates.