LabExact
Grade 934-AH Glass Microfiber Filter, Binderless Borosilicate, 1.5µm, 21mm, 550°C, 100/pk SKU: LE-AH2100

Featuring binderless borosilicate glass microfiber technology delivering exceptional clarity and high flow rates for demanding suspended solids determinations. This 1.5µm retention filter provides the standard reference medium for EPA Method 160.2¹ and Standard Methods 2540D² total suspended solids analysis, enabling precise gravimetric measurements across water quality monitoring applications. Depth filtration matrix constructed from 100% borosilicate glass microfibers without binders or strengthening agents delivers contamination-free results while withstanding continuous operation to 550°C.

Key Glass Microfiber Membrane Characteristics

Binderless borosilicate construction eliminates organic interference and maintains analytical purity at elevated temperatures
Fine porosity depth filtration matrix traps particulate within random fiber structure for exceptional small particle retention
Fast flow rate characteristics minimize filtration time while achieving 1.5µm particle size retention with high load capacity
Smooth, uniform fiber structure permits characteristically high flow rates essential for gelatinous substances and high particulate concentrations
Inert glass matrix provides ideal medium for sediment entrapment requiring further analysis and scintillation counting applications

Key Construction Characteristics

Hydrophobic surface chemistry resists moisture interference during ambient and process water monitoring protocols
21mm diameter accommodates standard filtration apparatus and Gooch crucible configurations for gravimetric analysis
Thermal stability to 550°C enables high-temperature drying cycles and ignition procedures without dimensional change
Nonsterile designation optimized for environmental and industrial water analysis where sterility is not required
Compatible with cell harvesting applications and RIA scintillation counting due to low background interference characteristics

LE-AH2100 filters achieve reliable suspended solids determinations across the practical analytical range of 4 mg/L to 20,000 mg/L, maximizing your analytical flexibility for diverse water matrices from drinking water to industrial wastewaters. Outstanding depth filtration performance excels in prefiltration applications prior to membrane surface filtration, accelerating multi-stage processing workflows. EPA Method 160.2¹ and Standard Methods 2540D² compliance transforms these filters into validated reference-grade media, delivering analytical accuracy essential for regulatory compliance monitoring, process control, and environmental assessment applications demanding both thermal stability and contamination-free performance.

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