United Scientific™ Petri Dishes, Glass, 2-3/8" Dia. x 9/16"H, Pack of 10

Grade D Coarse porosity, fast flow rate, with a 2.7um 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. Glass microfiber filters are produced from 100% borosilicate glass microfiber without the use of binders or strengthening agents. Depth filtration categorizes filter media that traps particulate within the random matrix of fibers found within the thickness of the media. The efficiency rating of the filter is characteristic of the complex void space structure that develops ...

Grade A Fine porosity, fast flow rate, with a 1.6µm size particle retention. Frequently used in the filtration of precipitated proteins and cells. Ideally suited for use as a filter for radioimmuno assay of weak beta emitters by scintillation counting and gravimetric determination of airborne particulate. Glass microfiber filters are produced from 100% borosilicate glass microfiber without the use of binders or strengthening agents. Depth filtration categorizes filter media that traps particulate within the random matrix of fibers found within the thickness of the media. The ...

Demonstrating medium retention and flow rates, Grade CFP40 media is widely used in many general quantitative procedures in both liquid and gas. These procedures include: standard environmental test procedures such as soil sample analysis and the collection of trace elements and radionuclides in air samples. Also used in liquid food tests for determination of sediments, primary analysis of cements and slurries and sample preparation prior to spectrophotometry. Retention of approximately 8 um. Extremely low ash content of

The LabExact® PTFE Syringe Filter with integrated glass fiber prefilter is engineered for efficient filtration of challenging samples containing higher particulate loads. Featuring a 0.45 µm PTFE membrane, it provides excellent chemical resistance and is well suited for aggressive solvents, acids, and organic solutions. The built‑in glass fiber prefilter helps prevent premature membrane clogging, improving flow rates and extending filter service life. With a 25 mm diameter, it supports higher sample volumes and consistent throughput in demanding workflows. Supplied non‑sterile, this ...

This product conforms to the AOAC standards for binderless glass microfiber moisture analysis pads for food analysis. Also widely used in industrial QA test methods such as moisture content of plastic resins, gels, pastes and semi-solids. This product is manufactured to the same high standards as IWT analytical filter media using QA test methods including HPLC analysis of extractables, caliper, porosity and basis weights. The product is compatible with every known major moisture analysis instrument utilizing convection and microwave energy sources requiring this form factor. This material ...