Tisch
Grade D Glass Fiber Filter Paper 2.7 um, 293mm, Nonsterile, 10/Pk SKU: EF19069

Glass Fiber (GF) Filter Paper - EF19069

High-particulate samples that overwhelm cellulose filter papers demand a depth filter medium with the loading capacity to process the full sample volume. Available across multiple retention grades from coarse prefiltration through fine particle capture to match specific analytical method requirements. Controlled manufacturing delivers the documented retention, flow rate, and physical consistency that analytical and preparative filtration methods require.

Key Filter Paper Characteristics

• Thermal stability exceeding 500 degrees C supports ignition-based gravimetric methods without filter decomposition or residue artifacts.
• Chemically inert glass composition withstands acids, bases, and organic solvents across the full pH range without fiber degradation.
• Binderless glass fiber matrix eliminates organic extractables that would interfere with downstream chromatographic or spectroscopic determinations.
• Nominal basis weight of 121g/m² reflects the fiber density that determines flow rate, retention, and mechanical handling characteristics.
• Chemically inert borosilicate composition resists acids, bases, and organic solvents across the full pH range without fiber degradation.

Whether your method requires simple clarification or precise gravimetric determination, the documented specifications above define what this paper delivers. For exactly this reason, thermal stability exceeding 500 degrees C supports the ignition step your gravimetric method requires without introducing filter decomposition artifacts. 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

283mm

Folded/ Fluted/ Pleated

No

Grade

D

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

121g/m²

Pack Count

10

Particle Retention

2.7um

Pore Size (µm)

2.7

Sterility

Nonsterile

Weight

1.40

Wettability

Hydrophobic

• Radioimmunoassay Harvesting - Binderless construction eliminates chemical interference during harvesting of bound radioactive tracers.
• Air Particulate Sampling - Captures airborne particulates by vacuum filtration for gravimetric mass determination and subsequent analysis.
• Membrane Prefiltration - Removes coarse debris from turbid samples before downstream membrane analysis to prevent premature blinding.
• Protein Precipitation - Captures precipitated proteins from biological fluids for downstream immunoassay and biochemical characterization.
• 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.