Grade B Glass Fiber Filter Paper 1.0um, 21mm, Nonsterile, 50/Pk SKU: EF19021

Glass Fiber (GF) Filter Paper - EF19021

Laboratories running both water quality and biological sample preparation benefit from glass microfiber grades that serve multiple analytical workflows. Thermal stability exceeding 500 degrees C allows direct ignition of the loaded filter for gravimetric suspended solids determinations. Altogether, controlled manufacturing delivers the documented retention, flow rate, and physical consistency that analytical and preparative filtration methods require.

Key Filter Paper Characteristics

• Compatible with standard glass and plastic filter holders across all laboratory-standard disc diameters for vacuum and gravity filtration applications.
• Binderless glass fiber construction delivers ultra-low blank values for gravimetric, thermal, and trace analytical methods requiring clean filter backgrounds.
• Borosilicate glass microfiber depth structure provides high particle loading capacity with flow rates significantly faster than cellulose papers of equivalent retention.
• Nominal retention ratings defined by fiber diameter and packing density provide consistent particle capture across production lots.
• Borosilicate glass microfiber construction provides depth filtration with loading capacity far exceeding cellulose papers of equivalent retention.

When your multi-site study requires comparable data across laboratories, papers manufactured to tight documented specifications ensure your results align. Depth filtration architecture gives you the particle loading capacity to process turbid samples that would blind cellulose papers or surface-capture membranes. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Capacity

20mL

Diameter

21mm

Folded/ Fluted/ Pleated

No

Grade

B

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

143g/m²

Pack Count

50

Particle Retention

1.0um

Pore Size (µm)

1

Sterility

Nonsterile

Weight

0.12

Wettability

Hydrophobic

• Air Particulate Sampling - Captures airborne particulates by vacuum filtration for gravimetric mass determination and subsequent analysis.
• 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.
• Scintillation Counting - Binderless glass fiber provides the chemically clean substrate liquid scintillation counting methods require.
• Protein Precipitation - Captures precipitated proteins from biological fluids for downstream immunoassay and biochemical characterization.
• Radioimmunoassay Harvesting - Binderless construction eliminates chemical interference during harvesting of bound radioactive tracers.