Grade F Glass Fiber Filter Paper, 0.7um, 55mm, Nonsterile, 25 Pk SKU: EF19076

Glass Fiber (GF) Filter Paper - EF19076

Laboratories running both water quality and biological sample preparation benefit from glass microfiber grades that serve multiple analytical workflows. Hydrophilic glass surface wets immediately on contact with aqueous solutions, requiring no pre-conditioning before filtration begins. Each sheet reflects production standards where fiber density, thickness, and retention characteristics are verified before lot release.

Key Filter Paper Characteristics

• Depth filtration captures particles throughout the fiber matrix rather than at the surface, maximizing total loading capacity before flow restriction.
• At 75g/m² nominal basis weight, the filter medium provides the mass uniformity needed for reproducible gravimetric determinations.
• Hydrophilic glass fiber wets spontaneously on contact with aqueous solutions, eliminating pre-wetting steps required by hydrophobic filter media.
• Pure borosilicate glass construction eliminates organic extractables that could interfere with downstream chromatographic or spectroscopic analysis.
• Binderless glass fiber matrix eliminates organic extractables that would interfere with downstream chromatographic or spectroscopic determinations.

When your application makes the filter paper part of the measurement, the ash and weight specifications above define its analytical contribution. In particular, grade-specific retention ratings let you match particle capture to the specific requirements of each analytical method in your laboratory. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Capacity

7mL

Diameter

55mm

Folded/ Fluted/ Pleated

No

Grade

F

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

75g/m²

Pack Count

25

Particle Retention

0.7um

Pore Size (µm)

0.7

Sterility

Nonsterile

Weight

0.26

Wettability

Hydrophobic

• Stack Emissions Testing - High temperature tolerance supports gravimetric particulate determination from industrial emission source sampling.
• Chlorophyll Extraction - Concentrates algal cells from water column samples for chlorophyll measurement in aquatic quality assessment.
• Protein Precipitation - Captures precipitated proteins from biological fluids for downstream immunoassay and biochemical characterization.
• Biological Clarification - Clears cell culture harvests and biological lysates of particulate debris before chromatographic purification.
• Scintillation Counting - Binderless glass fiber provides the chemically clean substrate liquid scintillation counting methods require.
• Radioimmunoassay Harvesting - Binderless construction eliminates chemical interference during harvesting of bound radioactive tracers.