Grade D Glass Fiber Filter Paper 2.7 um, 25mm, Nonsterile, 50/Pk SKU: EF19050

Glass Fiber (GF) Filter Paper - EF19050

Analytical methods specifying glass microfiber collection media require filters manufactured to consistent retention and purity specifications across production lots. High void volume between randomly packed glass fibers sustains rapid flow rates even as particulate loading accumulates during filtration. In combination, from fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.

Key Filter Paper Characteristics

• Chemically inert glass composition withstands acids, bases, and organic solvents across the full pH range without fiber degradation.
• Borosilicate glass microfiber construction provides depth filtration with loading capacity far exceeding cellulose papers of equivalent retention.
• Nominal retention of 2.7um provides the particle size cutoff appropriate for the analytical or preparative separation method.
• Depth filtration captures particles throughout the fiber matrix rather than at the surface, maximizing total loading capacity before flow restriction.
• High void volume between randomly packed fibers sustains rapid flow rates even as accumulated particulate loading increases during filtration.

If your laboratory supports multiple research groups with varying filtration needs, this paper's broad applicability simplifies your procurement process. Specifically, high void volume within the fiber matrix extends the sample volume you can process before flow restriction requires a filter change. 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

25mm

Folded/ Fluted/ Pleated

No

Grade

D

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

121g/m²

Pack Count

50

Particle Retention

2.7um

Pore Size (µm)

2.7

Sterility

Nonsterile

Weight

0.12

Wettability

Hydrophobic

• Air Particulate Sampling - Captures airborne particulates by vacuum filtration for gravimetric mass determination and subsequent analysis.
• Turbid Sample Processing - High loading capacity filters heavily particulate environmental and industrial samples without premature clogging.
• Membrane Prefiltration - Removes coarse debris from turbid samples before downstream membrane analysis to prevent premature blinding.
• Radioimmunoassay Harvesting - Binderless construction eliminates chemical interference during harvesting of bound radioactive tracers.
• 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.