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  2. Beaker (laboratory equipment) - Wikipedia

    en.wikipedia.org/wiki/Beaker_(laboratory_equipment)

    These beakers usually do not have a flat scale. The presence of a spout means that the beaker cannot have a lid. However, when in use, beakers may be covered by a watch glass to prevent contamination or loss of the contents, but allowing venting via the spout. Alternatively, a beaker may be covered with another larger beaker that has been ...

  3. Jena glass - Wikipedia

    en.wikipedia.org/wiki/Jena_glass

    The main products of Jenaer Glas are laboratory glassware and glass tableware. Typical examples of lab glassware are fireproof beakers and tumblers, and bottles with glass or teflon-coated lids. Glassware is preferred for many uses since it is easy to clean, and there is no risk of contaminants like plasticizers.

  4. Imperial Eagle beaker - Wikipedia

    en.wikipedia.org/wiki/Imperial_Eagle_beaker

    Most Imperial Eagle beakers had a capacity of three to four liters and were crafted from white or coloured glass. The cylindrical Imperial Eagle beakers are 20 to 32 cm in height and have a diameter of 10 to 15 cm. These beakers were occasionally crafted with a lid and a foot made out of brass or tin.

  5. Watch glass - Wikipedia

    en.wikipedia.org/wiki/Watch_glass

    A watch glass is a circular concave piece of glass used in chemistry as a surface to evaporate a liquid, to hold solids while being weighed, for heating a small amount of substance, and as a cover for a beaker. When used to cover beakers, the purpose is generally to prevent dust or other particles from entering the beaker; the watch glass does ...

  6. Laboratory glassware - Wikipedia

    en.wikipedia.org/wiki/Laboratory_glassware

    Three beakers, an Erlenmeyer flask, a graduated cylinder and a volumetric flask. Laboratory glassware is a variety of equipment used in scientific work, traditionally made of glass. Glass may be blown, bent, cut, molded, or formed into many sizes and shapes. It is commonly used in chemistry, biology, and analytical laboratories.

  7. Cup - Wikipedia

    en.wikipedia.org/wiki/Cup

    Anglo-Saxon glass had several types of cup, most shared with continental areas, including "palm cups" with no flat bottom, claw beakers, glass horns, and different types of beaker. In the European Middle Ages the shapes of most ordinary cups were closer to mugs , tankards , and goblets rather than modern cups, in wood, pottery, or sometimes ...

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