LabExact
Grade 934-AH® Glass Microfiber Filter, Pre-Washed, 1.5µm, 90mm, TSS/VSS, 100/Pk SKU: LE-AH-WD-9000

Featuring pre-washed glass microfiber technology delivering validated TSS and VSS analysis performance for wastewater monitoring applications. Fine porosity construction with fast flow rates and 1.5µm particle retention provides the industry standard for volatile suspended solids content and related measurements. Processed per EPA Standard Method 2540 C, D & E using reagent grade water (RGW) under strict controls to wash away extraneous fiber, eliminating critical sample preparation steps while maintaining analytical accuracy for environmental compliance testing.

Key Glass Microfiber Membrane Characteristics

Binderless borosilicate glass microfiber enables continuous use up to 550°C without degradation for high-temperature volatile solids analysis
Fast flow rate with fine porosity delivers 1.5µm size particle retention optimized for precise suspended solids capture
Reagent grade water (RGW) washing under strict controls removes extraneous fiber contamination ensuring clean analytical baseline performance
No added extractables aid in the elimination of sample contamination maintaining analytical integrity throughout testing protocols
Hydrophobic surface chemistry resists moisture interference during filtration while maintaining structural stability in aqueous applications

Key Construction Characteristics

Excellent wet strength withstands vacuum filtration pressures without tearing or dimensional changes during sample processing
Packaged within plastic container, in stacks with no pans or bar coding providing convenient bulk handling for high-throughput laboratories
Standard 90mm diameter accommodates large sample volumes while maximizing filtration area for improved throughput efficiency
Pre-washed preparation eliminates critical sample preparation steps from workflow reducing technician time while maintaining quality assurance protocols
Widely used in cell harvesting applications and RIA scintillation counting demonstrating versatility beyond wastewater analysis applications

Grade 934-AH® filters achieve compliance with Standard Methods 2540D and EPA Method 160.2^1,2 requirements, delivering validated performance for environmental monitoring laboratories. Effective time saver removes a step from work flow while maintaining high levels of quality assurance, accelerating your analytical productivity during peak sample loads. Ready-to-use preparation saves up to 168 minutes per test series, transforming these filters into productivity multipliers for wastewater treatment facilities, environmental consultancies, and regulatory compliance laboratories requiring both TSS and VSS analytical capabilities with certified EPA method performance.

¹ EPA Method 160.2 Total Suspended Solids: https://www.epa.gov/sites/default/files/2015-08/documents/method_160-2_1971.pdf
² Standard Methods 2540 Solids Analysis: https://www.standardmethods.org/doi/10.2105/SMWW.2882.030