Laboratory Filtration

This unique media is an analytical purity grade cellulose based non-sterile paper designed for conveying powder or gelatinous paste samples to and from balances and instruments. The material has sufficient structural integrity to resist tearing during quadrant folding or enveloping. The surface is highly calendared (non treated gloss) to a smoothness which resists sample hold or moisture absorption. The surface texture is designed to increase abrasion durability during spatula scraping. This media demonstrates excellent lot-to-lot reproducibility. Material chemistries are verified against ...

Disposable non-sterile Nylon/Polyamide filtration media syringe filters feature Luer-Lok™ and pressure fitting. They are ultrasonically bonded for reliability and the filter media type is clearly inscribed on barrel. Excellent unit-to-unit and lot-to-lot reproducibility and consistency. The unique concentric funnel shaped barrel increases volume and decreases back pressure. Hydrophilic material recommended for filtration of aqueous or organic/aqueous medium polar liquids. Commonly used for general laboratory filtration and filtration of HPLC and GC samples prior to injection. ...

Biologically inert mixtures of cellulose acetate and cellulose nitrate result in membranes with a smoother and more uniform surface than pure nitrocellulose filters. MCE is easier to handle and less likely to crack and fracture than traditional CN membranes. Pure surface, no additional smoothing treatment or surfactants.Non-sterile version is bright white with an accurate pore structure and highly regulated density for accuracy. Medium-fast flow rates with reproducible loading capacity. Clean-edge processing ensures easy separation from stack and less curl. Autoclavable.Use for ...

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 ...

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 ...