The TE-G653 glass fiber filters are engineered for Total Suspended Particulate (TSP) collection in high volume ambient air sampling applications. These filters meet EPA specifications for glass fiber or other relatively inert, nonhygroscopic material with a collection efficiency of 99% minimum as measured by the DOP test (ASTM-2986) for particles of 0.3 µm diameter.
EPA Compliance
Manufactured to strict EPA standards for ambient air quality monitoring, these filters comply with 40 CFR Part 50, Appendix B reference method requirements. The EPA reference method for TSP uses a high-volume sampler to collect particles with aerodynamic diameters of approximately 100 µm or less, sampling 40 and 60 ft³/min of air with the sampling rate held constant over the sampling period.
Technical Characteristics
- Dimensions: 8" x 10" (203 x 254 mm)
- Material: Glass fiber filter paper
- Collection efficiency: 99% minimum for 0.3 µm particles
- Relatively inert and nonhygroscopic properties
- Low artifact formation potential
Compatibility
These nominal 8 x 10 inch filters are typically used with high volume air samplers as specified in 40 CFR Part 50, Appendixes B (TSP) and J (PM10). Compatible with all Tisch Environmental high volume TSP samplers and other manufacturer's equipment designed for 8" x 10" filter media.
Handling and Storage
Careful handling of the filter between the presampling and postsampling weighings is necessary to avoid errors due to loss of fibers or particles from the filter. Glass fiber filters are comparatively insensitive to changes in relative humidity, but collected particulate matter can be hygroscopic. The moisture conditioning procedure minimizes but may not completely eliminate error due to moisture.
Applications
Essential for regulatory ambient air quality monitoring programs, environmental compliance assessments, and research applications requiring EPA-compliant TSP measurements. Used by environmental agencies, industrial facilities, and research institutions for particulate matter characterization and regulatory reporting.