LabExact
Grade 934-AH Glass Microfiber Filter, Binderless Borosilicate, 1.5µm, 42.5mm, 100/Pk SKU: LE-AH4250

Featuring binderless borosilicate glass microfiber technology delivering exceptional thermal stability and superior flow rates for demanding suspended solids applications. A 1.5µm pore configuration provides precise particulate retention while maintaining rapid filtration rates essential for Standard Methods 2540D¹ and EPA Method 160.2² compliance. Ultra-pure borosilicate glass construction without binders or strengthening agents ensures contamination-free results for critical suspended solids determinations and related analytical measurements.

Key Glass Microfiber Membrane Characteristics

Binderless borosilicate glass construction eliminates organic contamination and maintains analytical purity throughout testing protocols
100% borosilicate glass microfiber matrix withstands continuous operation to 550°C without degradation or dimensional change
1.5µm particle retention efficiency captures fine suspended solids while optimizing flow rates for high-volume sample processing
Depth filtration technology traps particulates within random fiber matrix, providing exceptional load capacity for gelatinous substances
Hydrophobic surface chemistry resists moisture interference while maintaining structural integrity during extended filtration cycles

Key Construction Characteristics

Fine porosity microfiber structure achieves rapid flow rates while ensuring reliable particle capture for suspended solids analysis
Robust 42.5mm diameter accommodates standard filtration apparatus and provides optimal surface area for sample throughput
Smooth, uniform fiber construction permits characteristically high flow rates while retaining exceptionally small particles
Inert glass matrix enables accurate gravimetric analysis without interference from organic binders or strengthening agents
Nonsterile configuration delivers cost-effective performance for routine environmental and wastewater testing applications

LE-AH4250 filters achieve outstanding performance across diverse applications including cell harvesting, RIA scintillation counting, and prefiltration prior to membrane filtration. Superior load capacity and high dirt-holding characteristics maximize operational efficiency when processing samples with elevated particulate concentrations or gelatinous substances. EPA Method 160.2² and Standard Methods 2540D¹ compliance transforms these filters into validated reference-grade media, providing performance assurance for environmental monitoring, wastewater treatment process control, and regulatory compliance applications demanding both thermal stability and certified analytical accuracy.

¹ Standard Methods 2540D Total Suspended Solids: https://www.standardmethods.org/doi/10.2105/SMWW.2882.030
² EPA Method 160.2 Residue Non-Filterable: https://19january2017snapshot.epa.gov/sites/production/files/2015-06/documents/160_2.pdf