Grade A Glass Fiber Filter Paper 1.6um, 25mm, Nonsterile, 100/Pk SKU: EF19007

Glass Fiber (GF) Filter Paper - EF19007

Water quality monitoring programs need glass microfiber filters with documented retention specifications that satisfy regulatory method requirements. Chemically inert borosilicate glass resists degradation across the full pH range, maintaining fiber integrity through acid and alkaline sample matrices. Ultimately, each sheet reflects production standards where fiber density, thickness, and retention characteristics are verified before lot release.

Key Filter Paper Characteristics

• Thermal stability exceeding 500 degrees C supports ignition-based gravimetric methods without filter decomposition or residue artifacts.
• Binderless glass fiber matrix eliminates organic extractables that would interfere with downstream chromatographic or spectroscopic determinations.
• Hydrophilic glass surface wets spontaneously on contact with aqueous solutions, requiring no pre-conditioning before sample filtration.
• Basis weight of 53g/m² indicates the fiber mass per unit area that controls retention, flow rate, and mechanical strength.
• Borosilicate glass microfiber depth structure provides high particle loading capacity with flow rates significantly faster than cellulose papers of equivalent retention.

When your quality system requires documented specifications for every consumable, the grade data above provides the traceability your auditors expect. To that end, 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

20mL

Diameter

25mm

Folded/ Fluted/ Pleated

No

Grade

A

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

53g/m²

Pack Count

100

Particle Retention

1.6um

Pore Size (µm)

1.6

Sterility

Nonsterile

Weight

0.12

Wettability

Hydrophobic

• Chlorophyll Extraction - Concentrates algal cells from water column samples for chlorophyll measurement in aquatic quality assessment.
• 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.
• Stack Emissions Testing - High temperature tolerance supports gravimetric particulate determination from industrial emission source sampling.
• Suspended Solids Analysis - Captures particulates from water and wastewater samples for gravimetric TSS determination by standard methods.
• Water Quality Monitoring - Collects suspended solids from environmental water samples for regulatory compliance and watershed assessment.