Grade C Glass Fiber Filter Paper 1.2um, 150mm, Nonsterile, 25/Pk SKU: EF19048

Glass Fiber (GF) Filter Paper - EF19048

Vacuum filtration of turbid environmental samples requires a depth filter that maintains flow rates through heavy particulate loads without premature blinding. Grade-specific fiber diameter and packing density produce defined retention ratings that remain consistent across manufacturing lots. Each sheet reflects production standards where fiber density, thickness, and retention characteristics are verified before lot release.

Key Filter Paper Characteristics

• Pure borosilicate glass construction eliminates organic extractables that could interfere with downstream chromatographic or spectroscopic analysis.
• Hydrophilic glass fiber wets spontaneously on contact with aqueous solutions, eliminating pre-wetting steps required by hydrophobic filter media.
• Nominal retention ratings defined by fiber diameter and packing density provide consistent particle capture across production lots.
• At 1.2um rated retention, the fiber matrix captures particles above the threshold while allowing smaller materials to pass through.
• Compatible with standard glass and plastic filter holders across all laboratory-standard disc diameters for vacuum and gravity filtration applications.

When your application makes the filter paper part of the measurement, the ash and weight specifications above define its analytical contribution. For exactly this reason, chemical inertness across the full pH range means this filter handles the same aggressive sample matrices your analytical membranes process. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

Capacity

7mL

Diameter

150mm

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

0.58

Wettability

Hydrophobic

• Air Particulate Sampling - Captures airborne particulates by vacuum filtration for gravimetric mass determination and subsequent analysis.
• 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.
• Gravimetric Air Monitoring - Thermal stability supports ignition-based mass determination of collected airborne particulate samples.
• Membrane Prefiltration - Removes coarse debris from turbid samples before downstream membrane analysis to prevent premature blinding.
• Chlorophyll Extraction - Concentrates algal cells from water column samples for chlorophyll measurement in aquatic quality assessment.