Grade A Glass Fiber Filter Paper 1.6um, 293mm, Nonsterile, 10/Pk SKU: EF19020

Glass Fiber (GF) Filter Paper - EF19020

Water quality monitoring programs need glass microfiber filters with documented retention specifications that satisfy regulatory method requirements. Available across multiple retention grades from coarse prefiltration through fine particle capture to match specific analytical method requirements. Working in concert, lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.

Key Filter Paper Characteristics

• Chemically inert borosilicate composition resists acids, bases, and organic solvents across the full pH range without fiber degradation.
• Depth filtration captures particles throughout the fiber matrix rather than at the surface, maximizing total loading capacity before flow restriction.
• Rated at 1.6um particle retention, the fiber matrix provides a defined cutoff for consistent separation across analytical batches.
• Randomly oriented glass microfibers create a depth structure that captures particles throughout the matrix, not just at the surface.
• Hydrophilic glass fiber wets spontaneously on contact with aqueous solutions, eliminating pre-wetting steps required by hydrophobic filter media.

When your application makes the filter paper part of the measurement, the ash and weight specifications above define its analytical contribution. For exactly this reason, 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

0.3mL

Diameter

293mm

Folded/ Fluted/ Pleated

No

Grade

A

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

53g/m²

Pack Count

10

Particle Retention

1.6um

Pore Size (µm)

1.6

Sterility

Nonsterile

Weight

1.40

Wettability

Hydrophobic

• Air Particulate Sampling - Captures airborne particulates by vacuum filtration for gravimetric mass determination and subsequent analysis.
• Radioimmunoassay Harvesting - Binderless construction eliminates chemical interference during harvesting of bound radioactive tracers.
• Biological Clarification - Clears cell culture harvests and biological lysates of particulate debris before chromatographic purification.
• Suspended Solids Analysis - Captures particulates from water and wastewater samples for gravimetric TSS determination by standard methods.
• 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.