Glass Fiber (GF) Filter Paper - EF19061
Environmental laboratories processing high-volume water and air samples need a filter medium that combines fine retention with rapid throughput. Thermal stability exceeding 500 degrees C allows direct ignition of the loaded filter for gravimetric suspended solids determinations. For this reason, quality-controlled production produces filter paper with the documented consistency that reproducible analytical and preparative methods demand.
Key Filter Paper Characteristics
- Particle retention rating of 0.7um defines the separation threshold for the application, determining which solids are captured and which pass through.
- Hydrophilic glass surface wets spontaneously on contact with aqueous solutions, requiring no pre-conditioning before sample filtration.
- Nominal basis weight of 75g/m² reflects the fiber density that determines flow rate, retention, and mechanical handling characteristics.
- High void volume between randomly packed fibers sustains rapid flow rates even as accumulated particulate loading increases during filtration.
- Borosilicate glass microfiber construction provides depth filtration with loading capacity far exceeding cellulose papers of equivalent retention.
If your teaching or research laboratory processes high volumes of routine samples, the documented flow rates above translate directly to throughput. Under these conditions, multiple retention grades from 0.7 to 2.7 micrometers let you select the particle capture threshold each of your methods specifies. 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
- 12mL
- Diameter
- 110mm
- Folded/ Fluted/ Pleated
- No
- Grade
- F
- Material
- Glass Fiber (GF)
- Nominal Basis Weight (g/ m²)
- 75g/m²
- Pack Count
- 10
- Particle Retention
- 0.7um
- Pore Size (µm)
- 0.7
- Sterility
- Nonsterile
- Weight
- 0.56
- Wettability
- Hydrophobic
- 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.
- Water Quality Monitoring - Collects suspended solids from environmental water samples for regulatory compliance and watershed assessment.
- Biological Clarification - Clears cell culture harvests and biological lysates of particulate debris before chromatographic purification.
- Stack Emissions Testing - High temperature tolerance supports gravimetric particulate determination from industrial emission source sampling.
- Turbid Sample Processing - High loading capacity filters heavily particulate environmental and industrial samples without premature clogging.