Grade D Glass Fiber Filter Paper 2.7 um, 142mm, Nonsterile, 10/Pk SKU: EF19047

Glass Fiber (GF) Filter Paper - EF19047

Processing samples with high suspended solids concentrations requires a filter medium engineered for particle loading capacity, not just surface retention. Inorganic glass composition produces ultra-low extractable levels suitable for trace analytical methods sensitive to organic background interference. In turn, each sheet reflects production standards where fiber density, thickness, and retention characteristics are verified before lot release.

Key Filter Paper Characteristics

• Thermal stability exceeding 500 degrees C supports ignition-based gravimetric methods without filter decomposition or residue artifacts.
• High void volume within the randomly oriented fiber matrix sustains flow rates through heavy particulate loads that would blind surface-capture filters.
• High void volume between randomly packed fibers sustains rapid flow rates even as accumulated particulate loading increases during filtration.
• Nominal retention ratings defined by fiber diameter and packing density provide consistent particle capture across production lots.
• Chemically inert borosilicate composition resists acids, bases, and organic solvents across the full pH range without fiber degradation.

Reporting filtration parameters alongside your analytical results demands documented grade, retention, and lot traceability for reviewer confidence. For this application, hydrophilic glass surface eliminates the pre-wetting steps your aqueous filtration protocols would otherwise require before processing begins. 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

142mm

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

0.58

Wettability

Hydrophobic

• Stack Emissions Testing - High temperature tolerance supports gravimetric particulate determination from industrial emission source sampling.
• Turbid Sample Processing - High loading capacity filters heavily particulate environmental and industrial samples without premature clogging.
• Protein Precipitation - Captures precipitated proteins from biological fluids for downstream immunoassay and biochemical characterization.
• Gravimetric Air Monitoring - Thermal stability supports ignition-based mass determination of collected airborne particulate samples.
• Scintillation Counting - Binderless glass fiber provides the chemically clean substrate liquid scintillation counting methods require.
• Air Particulate Sampling - Captures airborne particulates by vacuum filtration for gravimetric mass determination and subsequent analysis.