LabExact Quartz Heat Treated High Purity SiO2 Binderless Glass Microfiber Filter 4.25 cm Dia, 100PK

Grade TSS is a Binderless high efficiency (HEPA type) filter medium with particle retention of 1.50um. Liquid filtration properties have been specifically designed for EPA Methods 2540C and 2540D for testing dissolved and suspended solids in water and wastewater. High flow rate with high capacity. Binderless borosilicate glass fiber media has no added extractables to aid in the elimination of sample contamination. Excellent wet strength. Other common applications include gravimetric analysis of air pollutants, membrane support pads, membrane prefilters, clarification of reagent and buffer ...

Grade 934-AH® - Fine porosity, fast flow rate, with a 1.5µm size particle retention. This material is the standard for volatile suspended solids content and related measurements (Standard Methods 2540D and EPA Method 160.2). Also widely used in cell harvesting applications and RIA scintillation counting. Binderless borosilicate glass microfiber enables use up to 550°C. The trademark 934-AH® is owned by GE Healthcare/Whatman Inc. and used under exclusive license for purposes of private label.

LabExact 934-AH® glass microfiber filters are produced from 100% borosilicate glass microfiber without the use of binders or strengthening agents. Fine porosity, fast flow rate with a 1.5 um size particle retention. This material is the standard for suspended solids content and related measurements (Standard Methods 2540D and EPA Method 160.2). Also widely used in cell harvesting applications and RIA scintillation counting. Binderless borosilicate glass microfiber enables use up to 550°C. Depth filtration traps particulate within the random matrix of fibers within the thickness of ...

This heat‑treated quartz binderless glass microfiber filter is pre‑fired using an algorithmically controlled muffle furnace process to ensure consistent and repeatable thermal conditioning. The heat‑treatment produces an annealed filter media that is stronger, more dimensionally stable, and easier to handle during preparation and use. This controlled firing significantly reduces the initial LOI (loss on ignition), improving analytical accuracy in high‑temperature applications. As a result, the filter demonstrates enhanced thermal durability with an effective operating temperature range of ...

Grade D - Coarse porosity, fast flow rate, with a 2.7µm size particle retention. Well suited for higher volume and repetitive laboratory filtering. Also ideally used as a general pre-filter to extend primary filter life. Binderless borosilicate glassmicrofiber.