Grade F Glass Fiber Filter Paper, 0.7um, 47mm, Nonsterile, 100/Pk SKU: EF19071

Glass Fiber (GF) Filter Paper - EF19071

Vacuum filtration of turbid environmental samples requires a depth filter that maintains flow rates through heavy particulate loads without premature blinding. Binderless construction eliminates organic and resin-based additives that would contribute background contamination to sensitive downstream analytical methods. From fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.

Key Filter Paper Characteristics

• 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.
• High void volume between randomly packed fibers sustains rapid flow rates even as accumulated particulate loading increases during filtration.
• High void volume within the randomly oriented fiber matrix sustains flow rates through heavy particulate loads that would blind surface-capture filters.
• Chemically inert glass composition withstands acids, bases, and organic solvents across the full pH range without fiber degradation.

When your quality system requires documented specifications for every consumable, the grade data above provides the traceability your auditors expect. Meeting this challenge, high void volume within the fiber matrix extends the sample volume you can process before flow restriction requires a filter change. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

Capacity

7mL

Diameter

47mm

Folded/ Fluted/ Pleated

No

Grade

F

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

75g/m²

Pack Count

100

Particle Retention

0.7um

Pore Size (µm)

0.7

Sterility

Nonsterile

Weight

0.23

Wettability

Hydrophobic

• Turbid Sample Processing - High loading capacity filters heavily particulate environmental and industrial samples without premature clogging.
• Biological Clarification - Clears cell culture harvests and biological lysates of particulate debris before chromatographic purification.
• Chlorophyll Extraction - Concentrates algal cells from water column samples for chlorophyll measurement in aquatic quality assessment.
• Suspended Solids Analysis - Captures particulates from water and wastewater samples for gravimetric TSS determination by standard methods.
• Scintillation Counting - Binderless glass fiber provides the chemically clean substrate liquid scintillation counting methods require.
• Stack Emissions Testing - High temperature tolerance supports gravimetric particulate determination from industrial emission source sampling.