LabExact
Grade B Glass Microfiber Filter, Binderless - 1.0µm, 47mm, Borosilicate, 100/pk SKU: LE-B4700

Featuring binderless borosilicate glass microfiber technology delivering precision 1.0µm particle retention for biochemical polymer collection and solid particulate filtration applications. This medium-flow rate filter provides twice the thickness of standard Grade A configurations, maximizing loading capacity while maintaining exceptional filtration performance. Ultra-pure 100% borosilicate glass construction without strengthening agents delivers contamination-free results for demanding analytical protocols requiring high-capacity depth filtration performance.

Key Glass Microfiber Membrane Characteristics

Binderless borosilicate construction eliminates organic contamination and maintains chemical inertness in aggressive solvents
1.0µm retention efficiency captures fine biochemical polymers while optimizing flow rates for high-volume processing
Double-thickness design provides superior loading capacity compared to Grade A filters for extended filtration cycles
Smooth, uniform fiber matrix enables characteristically fast flow rates while achieving exceptional small particle retention
Hydrophobic surface chemistry resists moisture interference and maintains structural integrity during wet applications

Key Construction Characteristics

47mm diameter accommodates standard filter holder configurations and EPA Method 160.2¹ compliance protocols
Depth filtration architecture traps particulates within random fiber matrix for high-efficiency retention performance
Complex void space structure develops optimal particulate retention while maintaining medium to fast flow characteristics
Thermal stability withstands temperatures to 550°C for high-temperature analytical and prefilter applications
Chemical resistance to acids, alkalis, and organic solvents maximizes compatibility across diverse analytical procedures

LE-B4700 filters achieve optimal performance as prefilters for membrane systems and biochemical polymer precipitation applications, accelerating your analytical workflows through superior loading capacity and consistent flow rates. Outstanding chemical compatibility with aggressive solvents transforms these filters into versatile media for gas filtration, solution clarification, and solid-liquid separations demanding both high capacity and reliable particle retention. EPA Method 160.2 compliance¹ and ASTM compatibility provide performance validation for environmental monitoring, water quality analysis, and laboratory applications requiring certified analytical accuracy with enhanced throughput capabilities.

¹ EPA Method 160.2 - Residue, Non-Filterable (Total Suspended Solids): https://www.epa.gov/esam/epa-method-1602-residue-non-filterable-gravimetric-dried-103-105degc