Grade D Glass Fiber Filter Paper 2.7 um, 70mm, Nonsterile, 10/Pk SKU: EF19064

Glass Fiber (GF) Filter Paper - EF19064

Environmental laboratories processing high-volume water and air samples need a filter medium that combines fine retention with rapid throughput. Thick fiber matrix provides high dirt-holding capacity that extends filter service life when processing turbid or heavily particulate samples. In sum, standardized manufacturing protocols produce papers with retention and flow characteristics that remain constant from the first batch to the last.

Key Filter Paper Characteristics

• 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.
• Thermal stability exceeding 500 degrees C supports ignition-based gravimetric methods without filter decomposition or residue artifacts.
• Binderless glass fiber construction delivers ultra-low blank values for gravimetric, thermal, and trace analytical methods requiring clean filter backgrounds.
• Depth filtration captures particles throughout the fiber matrix rather than at the surface, maximizing total loading capacity before flow restriction.

If you're transitioning from qualitative screening to quantitative gravimetric work, the documented ash content above confirms this paper's suitability. Multiple retention grades from 0.7 to 2.7 micrometers let you select the particle capture threshold each of your methods specifies. 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

70mm

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

0.26

Wettability

Hydrophobic

• 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.
• Stack Emissions Testing - High temperature tolerance supports gravimetric particulate determination from industrial emission source sampling.
• 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.
• Suspended Solids Analysis - Captures particulates from water and wastewater samples for gravimetric TSS determination by standard methods.