LabExact
Grade 934-AH® Glass Fiber Filter, Prewashed & Preweighed, 47mm, 1.5µm, TSS/VSS Ready, 100/Pk SKU: LE-AH-WFT-4700

Featuring binderless glass microfiber technology with precision pre-processing protocols delivering immediate analytical readiness for Total Suspended Solids (TSS) and Volatile Suspended Solids (VSS) determinations. These Grade 934-AH® filters undergo complete EPA Standard Method 2540 C, D & E¹ preparation using reagent grade water washing, controlled drying, desiccation, and precision weighing to 4 decimal place resolution. Individual packaging in aluminum pans with human-readable serial numbers, weights, and barcodes maximizes traceability while eliminating time-consuming pre-analytical sample preparation steps.

Key Glass Microfiber Membrane Characteristics

• Binderless glass fiber construction with 1.5µm retention efficiency captures suspended particles while maintaining consistent flow characteristics for high-throughput sample processing
• Pre-washed using reagent grade water under strict quality controls eliminates extraneous fiber contamination and background interference in gravimetric analysis
• Hydrophobic surface chemistry delivers superior particle retention while resisting moisture absorption during ambient storage and handling
• High-temperature stability withstands extended drying cycles at 103-105°C without dimensional change or fiber degradation
• Ultra-low ash content minimizes analytical bias in volatile solids determinations requiring high-temperature ignition protocols

Key Construction Characteristics

• Standard 47mm diameter configuration accommodates universal filtration manifolds and EPA-compliant sample volumes for regulatory testing applications
• Pre-weighed to 4 decimal place resolution with individual documentation eliminates weighing variability and accelerates analytical workflow efficiency
• Individual aluminum pan packaging prevents cross-contamination while providing secure filter handling during transport and storage
• Human-readable serial numbers and barcode identification enables complete sample tracking and chain-of-custody documentation
• Ready-to-use processing eliminates washing, drying, and desiccation steps while maintaining validated analytical performance standards

Grade 934-AH® filters achieve exceptional analytical precision for both TSS determinations dried at 103-105°C and VSS analysis requiring ignition at 550°C, streamlining your laboratory workflow while ensuring regulatory compliance. Outstanding time-saving advantages eliminate multiple preparation steps without compromising analytical accuracy, making these filters ideal for environmental monitoring laboratories processing high sample volumes. EPA Standard Method compliance transforms these filters into validated analytical media for wastewater treatment process control and regulatory effluent limitations assessment, delivering performance assurance for your most demanding water quality monitoring applications.