TE-QMA Micro-Quartz Hi-Vol Filters for PM10 Sampling, 8" x 10", 25/Box SKU: TE-QMA

High-Purity Micro-Quartz Filters for EPA-Compliant PM10 Monitoring

The TE-QMA micro-quartz filters provide reliable particulate collection for high volume PM10 ambient air sampling applications. These 8" x 10" micro-quartz filters are specifically designed for PM10 high volume particulate sampling, delivering the performance and purity required for EPA-compliant monitoring programs.

Technical Specifications

• Filter material: High-purity quartz (SiO2) microfiber
• Dimensions: 8" x 10" sheet
• Particle retention: 99.95% minimum for 0.3 µm particles (ASTM D 2986-91)
• Operating temperature: Up to 500°C
• Filter thickness: 0.45 mm (±15%)
• Tensile strength: 200 g/15 mm minimum (ASTM D 828-93)

EPA Compliance and Applications

These filters are typically used with high volume air samplers as specified in 40 CFR Part 50, Appendixes B (TSP) and J (PM10). The micro-quartz construction ensures compliance with EPA reference methods for ambient particulate matter monitoring. Due to the low level of alkaline earth metals, "artifact" products of sulfates and nitrates (from SO2 and NO2) are virtually eliminated, making these filters ideal for accurate PM10 mass concentration determinations.

Applications include:

• PM10 ambient air quality monitoring per 40 CFR Part 50, Appendix J
• Air sampling of acidic gases, stacks, flues, and aerosols
• Heavy metal analysis in particulate samples
• Source apportionment studies

Compatibility

These filters are compatible with Tisch Environmental high volume samplers and other manufacturers' hi-vol systems designed for 8" x 10" filter media. QM-A grade filters are sequentially numbered according to EPA standards and suitable for most applications (Whatman catalog: 1851-865).

Quality and Performance

High-purity quartz microfiber filters are applicable for particulate monitoring and heavy metal analysis. The quartz fiber construction provides excellent chemical resistance and dimensional stability under sampling conditions. Each filter maintains consistent performance characteristics for reliable, reproducible sampling results required in regulatory monitoring programs.

Packaged 25 filters per box with proper protection to maintain filter integrity during storage and handling.