Grade B Glass Fiber Filter Paper 1.0um, 70mm, Nonsterile, 10/Pk SKU: EF19009

Glass Fiber (GF) Filter Paper - EF19009

Gravimetric analysis of suspended solids requires a thermally stable filter that survives ignition without contributing measurable residue to the determination. Chemically inert borosilicate glass resists degradation across the full pH range, maintaining fiber integrity through acid and alkaline sample matrices. In combination, from fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.

Key Filter Paper Characteristics

• Pure borosilicate glass construction eliminates organic extractables that could interfere with downstream chromatographic or spectroscopic analysis.
• Nominal basis weight of 143g/m² reflects the fiber density that determines flow rate, retention, and mechanical handling characteristics.
• Binderless glass fiber matrix eliminates organic extractables that would interfere with downstream chromatographic or spectroscopic determinations.
• Borosilicate glass microfiber construction provides depth filtration with loading capacity far exceeding cellulose papers of equivalent retention.
• Rated at 1.0um particle retention, the fiber matrix provides a defined cutoff for consistent separation across analytical batches.

Scaling your method from development to routine production requires paper consistency at every lot, and the specifications above provide that assurance. In particular, thermal stability exceeding 500 degrees C supports the ignition step your gravimetric method requires without introducing filter decomposition artifacts. 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

B

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

143g/m²

Pack Count

10

Particle Retention

1.0um

Pore Size (µm)

1

Sterility

Nonsterile

Weight

0.26

Wettability

Hydrophobic

• Air Particulate Sampling - Captures airborne particulates by vacuum filtration for gravimetric mass determination and subsequent analysis.
• Stack Emissions Testing - High temperature tolerance supports gravimetric particulate determination from industrial emission source sampling.
• Water Quality Monitoring - Collects suspended solids from environmental water samples for regulatory compliance and watershed assessment.
• Membrane Prefiltration - Removes coarse debris from turbid samples before downstream membrane analysis to prevent premature blinding.
• Biological Clarification - Clears cell culture harvests and biological lysates of particulate debris before chromatographic purification.
• Gravimetric Air Monitoring - Thermal stability supports ignition-based mass determination of collected airborne particulate samples.