Grade C Glass Fiber Filter Paper 1.2um, 55mm, Nonsterile, 25/Pk SKU: EF19044

Glass Fiber (GF) Filter Paper - EF19044

Prefiltration of turbid samples before membrane analysis requires a depth filter that captures coarse debris without restricting downstream flow rates. Binderless construction eliminates organic and resin-based additives that would contribute background contamination to sensitive downstream analytical methods. Ultimately, lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.

Key Filter Paper Characteristics

• Hydrophilic glass fiber wets spontaneously on contact with aqueous solutions, eliminating pre-wetting steps required by hydrophobic filter media.
• Binderless glass fiber construction delivers ultra-low blank values for gravimetric, thermal, and trace analytical methods requiring clean filter backgrounds.
• Compatible with standard glass and plastic filter holders across all laboratory-standard disc diameters for vacuum and gravity filtration applications.
• At 1.2um rated retention, the fiber matrix captures particles above the threshold while allowing smaller materials to pass through.
• Borosilicate glass microfiber depth structure provides high particle loading capacity with flow rates significantly faster than cellulose papers of equivalent retention.

Maintaining accreditation requires documented traceability at every step, and the grade specifications above support your audit readiness. Here, 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

350uL

Diameter

55mm

Folded/ Fluted/ Pleated

No

Grade

C

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

55g/m²

Pack Count

25

Particle Retention

1.2um

Pore Size (µm)

1.2

Sterility

Nonsterile

Weight

0.26

Wettability

Hydrophobic

• 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.
• Radioimmunoassay Harvesting - Binderless construction eliminates chemical interference during harvesting of bound radioactive tracers.
• Scintillation Counting - Binderless glass fiber provides the chemically clean substrate liquid scintillation counting methods require.
• Water Quality Monitoring - Collects suspended solids from environmental water samples for regulatory compliance and watershed assessment.
• Gravimetric Air Monitoring - Thermal stability supports ignition-based mass determination of collected airborne particulate samples.