LabExact
Grade F Glass Microfiber Filter, Binderless Borosilicate, 0.7µm, 47mm, 100/pk SKU: LE-F4700

Featuring binderless borosilicate glass microfiber technology delivering fine porosity filtration with 0.7µm particle retention for medium flow rate applications. Depth filtration design utilizes the complex void space structure created by overlapping smooth and uniform glass fibers, enabling characteristically high flow rates while maintaining exceptional retention of small particles and high loading capacity. Ultra-pure glass construction provides superior chemical compatibility with strong oxidizing, acidic, and alkaline solutions, making these filters ideal for critical analytical applications requiring contamination-free results.

Key Glass Microfiber Membrane Characteristics

Binderless 100% borosilicate glass construction eliminates organic interference and maintains analytical purity
0.7µm nominal pore size optimally balances fine particle retention with medium flow rate performance
Hydrophobic surface chemistry prevents aqueous solution interference during filtration processes
Exceptional thermal stability enables use at elevated temperatures without dimensional change or degradation
Smooth, uniform fiber structure provides consistent porosity and reproducible analytical results

Key Construction Characteristics

47mm diameter accommodates standard filter holders and provides 17.3 cm² effective filtration area
Depth filtration matrix traps particulate throughout the filter thickness for superior loading capacity
Chemical resistance to strong acids, bases, and organic solvents extends compatibility to aggressive sample matrices
Non-sterile configuration ready for immediate use in routine analytical procedures
Individual packaging in 100-count format ensures consistent handling and inventory management

LE-F4700 filters excel in TCLP analysis¹ applications where precise extraction of trace contaminants requires validated analytical protocols. Outstanding compatibility with Grade D filters creates optimized pre-filtration systems for laser spectroscopy sample preparation, while exceptional protein retention capabilities extend performance to immunoglobulin collection and precipitation studies. EPA Method 1311¹ compliance combined with superior chemical resistance delivers analytical confidence for environmental monitoring, hazardous waste characterization, and critical quality control applications demanding both chemical purity and consistent filtration performance.

¹ EPA Method 1311 - Toxicity Characteristic Leaching Procedure (TCLP): https://www.epa.gov/hw-sw846/sw-846-test-method-1311-toxicity-characteristic-leaching-procedure