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 | High density polyethylene Dewar Flask with vented and insulated HDPE covers. They are unbreakable, chemically resistant, and withstand temperatures from -196 to 100°C (-321 to 212°F). Double walls are filled with foamed urethane to minimize heat exchange. May be used for short term storage of dry ice-solvent, liquid nitrogen, or for use as a hot bath. They are ideal for storing frozen biological specimens. All available sizes feature molded-in-ribs for stability and a carrying handle on the 1, 2, and 4 liter sizes. |
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 | Particle-size standards are certified for mean diameter and are traceable to the National Bureau of Standards (NBS). Duke Scientific's new line of standards in the submicrometer size range is called Nanosphere Size Standards™, and Monosized Polymer Microspheres. Capacity 15ml |
 | Lab grade dewars. Made from borosilicate glass and vacuumed to 10-7 torr, without pads between walls, eliminating heat transfer for maximum efficiency. They come with low evaporation stopper and weighted base.
Spherical Dewar Flask
Metal Casting does not extend the full length of the flask. Florence flask design, offers the most efficient way of holding liquid nitrogen. Available with an optional Fiber Glass Caddie for safety, easy carrying, and decanting liquids from the above flasks. |
 | New designed Ground Glass Stoppered Bottles feature a no-drip pour lid for clean pouring of contents. The most preferred container for storage of prepared chemicals, and stock solutions. Octagon-shaped ground glass stopper is included. The borosilicate '400' glass offers a high degree of protection from leaching and the amber 500' glass gives extra protection to light-sensitive contents. |
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 | SRM 482 Au/Cu Set of 6 Standards, comprises 4 alloys and 2 pure metals.For more information : MAC6/set
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