LabExact
Grade 934-AH® Glass Fiber Filter, Prewashed & Preweighed, 90mm, 1.5µm, TSS/VSS, 100/Pk SKU: LE-AH-WFT-9000

Featuring binderless borosilicate glass microfiber technology delivering ready-to-use filtration performance for Total Suspended Solids (TSS) and Volatile Suspended Solids (VSS) determinations. Each Grade 934-AH® filter is processed per US EPA Standard Method 2540 C, D & E using reagent grade water washing, followed by precise drying, desiccation, and weighing to 4 decimal place resolution. The 90mm diameter configuration with 1.5µm particle retention provides validated analytical performance while eliminating time-consuming filter preparation protocols.

Key Glass Microfiber Membrane Characteristics

Binderless borosilicate glass microfiber construction enables continuous operation up to 550°C without thermal degradation
1.5µm retention efficiency captures fine particulates while maintaining optimal flow rates for wastewater analysis protocols
Low fiber shedding technology improves quality assurance of test results and minimizes gravimetric interference
Pre-washing removes water-soluble extractables with documented < 0.5 mg mass loss validation per EPA requirements
High-temperature stability supports volatile solids ignition procedures at 550°C for comprehensive organic matter analysis

Key Construction Characteristics

Individual packaging in aluminum pans with human-readable serial numbers, precise weight data, and barcode scanning capability
90mm diameter accommodates standard filtration apparatus while providing 63.6 cm² effective filtration area
High flow rate design with exceptional capacity delivers rapid processing without compromising analytical accuracy
Hydrophobic surface chemistry resists moisture interference during extended storage and handling protocols
EPA Method 160.2 compliance ensures validated performance for regulatory water quality determinations

LE-AH-WFT-9000 filters achieve immediate analytical readiness, eliminating multi-step preparation protocols that typically require 4-6 hours of washing, drying, and weighing procedures. Ready-to-use design provides significant time savings while maintaining strict quality assurance standards essential for wastewater treatment facility compliance monitoring. Industry-standard 934-AH® performance characteristics deliver reliable results for both TSS quantification and VSS organic content analysis, transforming your laboratory efficiency while ensuring regulatory compliance for municipal and industrial discharge monitoring programs.

¹ EPA Standard Method 2540 Solids: https://www.standardmethods.org/doi/10.2105/SMWW.2882.030
² EPA Method 160.2 Residue, Non-Filterable: https://www.epa.gov/esam