Grade D Glass Fiber Filter Paper 2.7 um, 42.5mm, Nonsterile, 50/Pk SKU: EF19055

Glass Fiber (GF) Filter Paper - EF19055

Water quality monitoring programs need glass microfiber filters with documented retention specifications that satisfy regulatory method requirements. Thick fiber matrix provides high dirt-holding capacity that extends filter service life when processing turbid or heavily particulate samples. In turn, consistent physical properties across the full sheet area support uniform filtration results in both gravity and vacuum applications.

Key Filter Paper Characteristics

• At 121g/m² nominal basis weight, the filter medium provides the mass uniformity needed for reproducible gravimetric determinations.
• Thermal stability exceeding 500 degrees C supports ignition-based gravimetric methods without filter decomposition or residue artifacts.
• At 2.7um rated retention, the fiber matrix captures particles above the threshold while allowing smaller materials to pass through.
• Chemically inert borosilicate composition resists 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.

If your laboratory supports multiple research groups with varying filtration needs, this paper's broad applicability simplifies your procurement process. In response, hydrophilic glass surface eliminates the pre-wetting steps your aqueous filtration protocols would otherwise require before processing begins. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Capacity

7mL

Diameter

42.5mm

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

0.23

Wettability

Hydrophobic

• Stack Emissions Testing - High temperature tolerance supports gravimetric particulate determination from industrial emission source sampling.
• Water Quality Monitoring - Collects suspended solids from environmental water samples for regulatory compliance and watershed assessment.
• Turbid Sample Processing - High loading capacity filters heavily particulate environmental and industrial samples without premature clogging.
• Air Particulate Sampling - Captures airborne particulates by vacuum filtration for gravimetric mass determination and subsequent analysis.
• Chlorophyll Extraction - Concentrates algal cells from water column samples for chlorophyll measurement in aquatic quality assessment.
• Gravimetric Air Monitoring - Thermal stability supports ignition-based mass determination of collected airborne particulate samples.