Grade C Glass Fiber Filter Paper 1.2um, 21mm, Nonsterile, 100/Pk SKU: EF19038

Glass Fiber (GF) Filter Paper - EF19038

Laboratories running both water quality and biological sample preparation benefit from glass microfiber grades that serve multiple analytical workflows. Randomly oriented borosilicate glass microfibers create a depth filtration matrix that captures particles throughout its thickness rather than solely at the surface. To this end, lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.

Key Filter Paper Characteristics

• Binderless glass fiber construction delivers ultra-low blank values for gravimetric, thermal, and trace analytical methods requiring clean filter backgrounds.
• Chemically inert glass composition withstands acids, bases, and organic solvents across the full pH range without fiber degradation.
• Pure borosilicate glass provides ultra-low blank values for trace analytical methods sensitive to organic or inorganic background contamination.
• Nominal retention ratings defined by fiber diameter and packing density provide consistent particle capture across production lots.
• Depth filtration captures particles throughout the fiber matrix rather than at the surface, maximizing total loading capacity before flow restriction.

If your laboratory runs standardized filtration protocols, the lot-level consistency of this filter paper protects your method reproducibility. Ultra-low blank values from pure borosilicate glass protect the accuracy of your trace-level environmental and gravimetric determinations. 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

100uL

Diameter

21mm

Folded/ Fluted/ Pleated

No

Grade

C

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

55g/m²

Pack Count

100

Particle Retention

1.2um

Pore Size (µm)

1.2

Sterility

Nonsterile

Weight

0.12

Wettability

Hydrophobic

• Suspended Solids Analysis - Captures particulates from water and wastewater samples for gravimetric TSS determination by standard methods.
• 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.
• Water Quality Monitoring - Collects suspended solids from environmental water samples for regulatory compliance and watershed assessment.
• Radioimmunoassay Harvesting - Binderless construction eliminates chemical interference during harvesting of bound radioactive tracers.
• Protein Precipitation - Captures precipitated proteins from biological fluids for downstream immunoassay and biochemical characterization.