Black Filter Paper

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Black Filter Paper
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  • Whatman Quantitative Filter Papers, Ashless, Grade 589/1

    GE Healthcare

    With less than 0.01% ash, GE’s Whatman Grade 589/1 filter papers can be used for the Blaine test in the cement industry and as an ash content test filter for foodstuffs. Herzberg filtration speed of 50 s* Black ribbon filter’ for fast filtration of coarse precipitates High purity ( Blaine test…

  • Black Filter Papers


    A deep black, qualitative paper for filtering light colored sediments, etc. Medium speed Retains crystalline precipitates of medium fineness 6 µm pore size

  • Cellulose Nitrate Membrane Filters, Type WCN

    GE Healthcare

    …plastic dispensers of 50 filters each Filters are interleaved with paper separators Each dispenser is labeled with pore size and filter diameter and has clear, plastic slip-on lid. White, Gridded, Sterile (4665M70 and 1231E77) With non-toxic, black grid in 3.1 mm squares …

  • Sugar Testing Filter Paper, 8613


    Ahlstrom offers a full range of specially designed filter paper for use in the sugar industry. Ahlstrom 8613 has a smooth black finish designed for use in applications requiring visual examination of particles. Ahlstrom 613 and 615 are particularly well suited for general laboratory filtration…

  • Shorty Serological Pipettes

    Globe Scientific

    …DNase-free. The pipettes are equipped with an aerosol barrier plug that prevents both liquid and aerosols from contaminating the pipettor. Printed black graduations prevent ambiguity and guarantee precise reading with less than 2% inaccuracy at full volume. Calibration is certified for accuracy.…

  • Serological Pipets

    Celltreat Scientific

    …brands of plastic wrap pipets All plastic wrapper can be wiped with alcohol without smearing ink or penetrating paper Color coded stripes and packaging enable quick volume identification Bi-directional graduations are printed in bold easy-to-read black ink Premium material filter plug

  • "Hydrogen Sulfide Test Strips, for microbiology"


    …contact with lead acetate a black preciptate, indicated by a visible black-colored reaction on the hydrogen sulfide paper strip. The lead acetate procedure is more sensitive than any other method for detecting hydrogen sulfide production. Packaging: Sterile filter paper strips (25 pcs, diameter 7…

  • Serological Pipets, Individually Wrapped

    Celltreat Scientific

    …(Part No. 229225B only) Bi-directional graduations are printed in bold easy-to-read black ink Color coded stripes and packaging enable quick volume identification All pipets contain a premium material filter plug Serological pipets are manufactured to the ASTM Standard Specification for…

  • Oxygen Flask Combustion Unit

    Exeter Analytical

    …simple procedure and involves placing a few milliliters of absorbent solution in a flask. The sample is weighed out and placed in an ashless filter paper holder which in turn is placed in a platinum basket attached to the stopper of the flask. The flask is filled with oxygen and the stopper is then…

  • Disposable Plastic Serological Pipettes

    Argos Technologies

    …dispensing; these polystyrene pipettes are sterile, pyrogen free and utilize a unique filter plug to prevent overfilling. The filter plug eliminates lint fibers and ensures plug stays in place.  The sharp, black, highly legible permanent graduations prevent ambiguity and guarantees precise…

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