Tisch
Grade F Glass Fiber Filter Paper, 0.7um, 25mm, Nonsterile, 100/Pk SKU: EF19070

Glass Fiber (GF) Filter Paper - EF19070

Gravimetric analysis of suspended solids requires a thermally stable filter that survives ignition without contributing measurable residue to the determination. Randomly oriented borosilicate glass microfibers create a depth filtration matrix that captures particles throughout its thickness rather than solely at the surface. Standardized manufacturing protocols produce papers with retention and flow characteristics that remain constant from the first batch to the last.

Key Filter Paper Characteristics

• Pure borosilicate glass provides ultra-low blank values for trace analytical methods sensitive to organic or inorganic background contamination.
• Rated at 0.7um particle retention, the fiber matrix provides a defined cutoff for consistent separation across analytical batches.
• Pure borosilicate glass construction eliminates organic extractables that could interfere with downstream chromatographic or spectroscopic analysis.
• Binderless glass fiber construction delivers ultra-low blank values for gravimetric, thermal, and trace analytical methods requiring clean filter backgrounds.
• Binderless glass fiber matrix eliminates organic extractables that would interfere with downstream chromatographic or spectroscopic determinations.

When your budget requires balancing performance with cost efficiency, the documented consistency above ensures you're not paying for premium features you don't need. Under these conditions, rapid flow rates through the glass microfiber matrix reduce the processing time your high-volume filtration workflows demand. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Capacity

7mL

Diameter

25mm

Folded/ Fluted/ Pleated

No

Grade

F

Material

Glass Fiber (GF)

Nominal Basis Weight (g/ m²)

75g/m²

Pack Count

100

Particle Retention

0.7um

Pore Size (µm)

0.7

Sterility

Nonsterile

Weight

0.12

Wettability

Hydrophobic

• 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.
• Turbid Sample Processing - High loading capacity filters heavily particulate environmental and industrial samples without premature clogging.
• Water Quality Monitoring - Collects suspended solids from environmental water samples for regulatory compliance and watershed assessment.
• Radioimmunoassay Harvesting - Binderless construction eliminates chemical interference during harvesting of bound radioactive tracers.
• Air Particulate Sampling - Captures airborne particulates by vacuum filtration for gravimetric mass determination and subsequent analysis.