LabExact
Grade HT Quartz A Filter, 2.2 µm, 47mm, Binderless SiO2, High-Temp Air Monitoring, 100/Pk SKU: LE-HT-Q4700

Featuring binderless quartz microfiber technology delivering 99.999% filtration efficiency for extreme temperature air monitoring applications. Ultra-high purity SiO₂ construction with hydrophobic surface characteristics provides exceptional particulate retention while maintaining thermal stability through 1150°C continuous operation. EPA PM10 compliant¹ construction meets validated analytical protocols for acidic gases, aerosols, and combustion emissions requiring certified environmental monitoring performance.

Key Quartz Microfiber Membrane Characteristics

• Binderless quartz construction eliminates organic contamination and maintains chemical purity at extreme temperatures
• 99.999% high purity SiO₂ with ultra-low metals delivers contamination-free results for critical trace analysis
• Exceptional thermal stability withstands continuous operation to 1150°C without degradation or dimensional change
• 2.2µm pore size captures fine particulates while optimizing airflow in high-volume sampling applications
• Hydrophobic surface chemistry resists moisture interference during ambient air and stack gas monitoring

Key Construction Characteristics

• Fine porosity microfiber matrix achieves 99.999% efficiency for 2.20µm particles in air filtration protocols
• Robust tensile strength of 285g/15mm (ASTM D828)² ensures handling integrity during filter installation and changeout
• Minimal loss on ignition below 2% validates chemical purity for gravimetric analysis and elemental determinations
• Standard 47mm diameter accommodates EPA sampling equipment and universal filter holder configurations
• Autoclavable glass construction enables pre-cleaning protocols for ultra-trace metal analysis applications

LE-HT-Q4700 filters achieve exceptional 1.1-1.35 m³/min flow rates optimized for ambient air monitoring, accelerating sampling cycles even during extended monitoring campaigns. Outstanding chemical resistance to all acidic gases except hydrofluoric acid maximizes analytical flexibility when monitoring corrosive emissions and industrial stack effluents. EPA PM10 compliance¹ transforms these filters into validated reference-grade media, providing performance assurance for critical environmental monitoring and atomic absorption spectroscopy applications demanding both extreme temperature tolerance and certified analytical accuracy.