Glass Fiber Filter Disks, 1.0um, 75mm, Hydrophilic, Nonsterile, 25/Pk
GVS SKU: 1215563

Featuring a binderless borosilicate glass fiber depth medium, these 75mm filter disks deliver a 1.0um nominal particle retention for high-flow prefiltration and sample clarification. The naturally hydrophilic media is composed of borosilicate glass fibers woven into a porous matrix without bonding resin, which avoids binder extractables during solvent filtration and gravimetric analysis. The open depth structure holds high particulate loads while maintaining low filter resistance, making the disk well suited to protecting downstream membranes and clarifying heavily loaded samples.

Key Glass Fiber Media Characteristics

• Naturally hydrophilic borosilicate glass fiber media wets readily with water and aqueous solutions.
• 1.0um nominal particle retention as a depth medium, not an absolute pore size, allowing some particles at or above the rating to pass.
• Binderless construction composed of borosilicate glass fibers in a porous matrix without bonding resin, designed to avoid binder extractables.
• High particulate loading capacity from the depth structure and large surface area, combined with low filter resistance for fast flow.
• Biologically inert and highly resistant to oxidizing agents and weak acids, and autoclavable.

Key Construction Characteristics

• Format: 75mm diameter flat filter disk.
• Sterility: supplied nonsterile.
• Pack: 25 disks per pack.
• Media: 100% borosilicate glass fiber, binderless.

The binderless depth medium provides consistent, low-cost clarification and dependable prefiltration across high particulate loads. Because the disk avoids binder extractables, it supports clean gravimetric and analytical determinations while preserving sample integrity. Its high loading capacity and fast flow help extend the life of downstream membranes.

Color

White

Diameter

75mm

Material

Glass Fiber (GF)

Pack Count

25

Pore Size (µm)

1.0

Prefilter (Yes/No)

Yes

Sterility

Nonsterile

Wettability

Hydrophilic

• Prefiltration Captures coarse and fine particulates ahead of finer membranes to extend downstream filter life.
• Sample Clarification Provides low-cost clarification of heavily loaded aqueous samples on its own.
• Gravimetric Analysis Binderless construction avoids binder extractables for accurate analytical and gravimetric determinations.
• Environmental Sample Prep Supports water and air pollution monitoring and suspended solids analysis.
• Protein Filtration Clarifies protein-containing solutions and biochemical samples.
• Solvent Filtration Filters solvents without leaching binder contaminants into the filtrate.