Grade C Glass Fiber Filter Paper 1.2um, 70mm, Nonsterile, 25/Pk SKU: EF19045

Glass Fiber (GF) Filter Paper - EF19045

Air particulate sampling for gravimetric mass determination demands a filter medium with low tare weight variability and thermal stability through weighing procedures. Available across multiple retention grades from coarse prefiltration through fine particle capture to match specific analytical method requirements. Consequently, consistent physical properties across the full sheet area support uniform filtration results in both gravity and vacuum applications.

Key Filter Paper Characteristics

• Chemically inert glass composition withstands acids, bases, and organic solvents across the full pH range without fiber degradation.
• Pure borosilicate glass construction eliminates organic extractables that could interfere with downstream chromatographic or spectroscopic analysis.
• Thermal stability exceeding 500 degrees C supports ignition-based gravimetric methods without filter decomposition or residue artifacts.
• Borosilicate glass microfiber construction provides depth filtration with loading capacity far exceeding cellulose papers of equivalent retention.
• Rated at 1.2um particle retention, the fiber matrix provides a defined cutoff for consistent separation across analytical batches.

When your multi-site study requires comparable data across laboratories, papers manufactured to tight documented specifications ensure your results align. To address this, depth filtration architecture gives you the particle loading capacity to process turbid samples that would blind cellulose papers or surface-capture membranes. 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

1mL

Diameter

70mm

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

• Protein Precipitation - Captures precipitated proteins from biological fluids for downstream immunoassay and biochemical characterization.
• Biological Clarification - Clears cell culture harvests and biological lysates of particulate debris before chromatographic purification.
• 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.
• Suspended Solids Analysis - Captures particulates from water and wastewater samples for gravimetric TSS determination by standard methods.
• Scintillation Counting - Binderless glass fiber provides the chemically clean substrate liquid scintillation counting methods require.