LabExact
Grade Quartz A Microfiber Filter, Binderless SiO2, 2.2µm, 125mm, High-Temp EPA PM10, 25/Pk SKU: LE-Q1250-4

Featuring binderless quartz microfiber technology delivering 99.999% filtration efficiency for high-temperature ambient air monitoring applications. Ultra-high purity SiO2 construction with 2.2µm retention provides precise particulate analysis while maintaining thermal stability through 1000°C continuous operation. EPA PM10 compliant performance characteristics¹ deliver reliable processing of acidic gases, aerosols, and stack emissions requiring validated analytical protocols.

Key Quartz Microfiber Membrane Characteristics

• Binderless quartz construction eliminates organic contamination and maintains purity at extreme temperatures up to 1000°C
• 99.999% high purity SiO2 with ultra-low metals content delivers contamination-free results for critical trace analysis
• Exceptional thermal stability withstands continuous operation without degradation or dimensional change at elevated temperatures
• 2.2µm retention efficiency captures fine particulates while optimizing airflow in high-volume sampling applications
• Hydrophobic surface chemistry resists moisture interference during ambient air and stack gas monitoring protocols

Key Construction Characteristics

• Fine porosity microfiber matrix achieves 99.999% efficiency for 2.20µm particles in air filtration protocols
• Robust tensile strength of 215g/15mm (ASTM D828)² ensures handling integrity during filter installation and changeout
• Minimal loss on ignition below 6% validates chemical purity for gravimetric analysis and elemental determinations
• Standard 125mm diameter accommodates high-volume sampling equipment and universal filter holder configurations
• Manufacturing with RO water filtration system maintains lot-to-lot reproducibility and analytical consistency

LE-Q1250-4 filters achieve exceptional 1.1-1.35 m³/min flow rates optimized for ambient air monitoring, accelerating your sampling cycles even during extended monitoring campaigns. Outstanding chemical resistance to all acidic gases except hydrofluoric acid maximizes your 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 your critical environmental monitoring, atomic absorption spectroscopy, and flame emission spectrometry applications demanding both extreme temperature tolerance and certified analytical accuracy.