The most complete classification of laboratory glass instruments, do not regret it!
[China Glass Net] Due to the wide variety of glass instruments, their versatility and shape, and the special analytical instruments used in different professional fields, it is difficult to classify all glass instruments in detail. According to internationally accepted standards, glass instruments and glass products used in laboratories are generally classified into the following eight categories.
(1) Conveying and intercepting devices: including glass joints, interfaces, valves, plugs, tubes, rods, etc.
(2) Containers: such as dishes, bottles, beakers, flasks, tanks, test tubes, etc.
(3) Basic operating instruments and devices: such as for absorption, drying, distillation, condensation, separation, evaporation, extraction, gas generation, chromatography, liquid separation, stirring, crushing, centrifugation, filtration, purification, combustion, combustion analysis, etc. Glass instruments and fixtures.
(4) Measuring instruments: such as measuring instruments and measuring instruments for measuring flow, specific gravity, pressure, temperature, surface tension, etc., dropper, pipette, syringe, etc.
(5) Physical measuring instruments: such as glass instruments for testing color, optical density, electrical parameters, phase change, radioactivity, molecular weight, viscosity, particle size, etc.
(6) Glass instruments for the determination of chemical elements and compounds: such as instruments for the determination of As, C02, elemental analysis, atomic analysis, metal elements, As, halogen and moisture.
(7) Materials testing instruments: such as instruments used for measurement of atmosphere, explosives, gases, metals and minerals, mineral oil, building materials, water quality, etc.
(8) Food, medicine, and biological analysis instruments: such as analytical instruments used in food analysis, blood analysis, microbial culture, microscope accessories, serum and vaccine tests, urine tests, etc.
At present, glass instruments commonly used in chemical analysis laboratories are generally classified into the following eight categories according to their uses and structural characteristics.
(1) Burners are those glassware that can be heated directly or indirectly: such as beakers, flasks, test tubes, conical flasks, iodometric flasks, evaporators, curved necks, and the like.
(2) The gauge type refers to a glass instrument used for accurately measuring or roughly measuring the volume of a liquid: such as a measuring cup, a measuring cylinder, a volumetric flask, a burette, a pipette, and the like.
(3) Bottles refer to containers for storing solid or liquid chemicals, chemical reagents, water samples, etc.: such as reagent bottles, jars, jars, weighing bottles, dropping bottles, washing bottles, etc.
(4) There are many kinds of glass instruments for tubes, rods and rods. According to their uses, there are condensing tubes, fractionating tubes, centrifuge tubes, colorimetric tubes, siphon tubes, connecting tubes, adjusting rods, stirring rods, etc.
(5) Instruments used for gas operation refer to glass instruments used for the generation, collection, storage, treatment, analysis and measurement of gases, such as gas generators, gas cylinders, gas drying bottles, gas collection and storage devices. , gas processing equipment and gas analysis, measuring equipment, etc.
(6) The liquid dispenser and filter mainly include various funnels and filter devices used therewith: such as a funnel, a separatory funnel, a Buchner funnel, a sand core funnel, a suction filter bottle, and the like.
(7) Standard grinding glass instruments are those unit-type glass instruments with grinding and grinding. The various glass instruments described above may have standard grinding ports or non-standard grinding ports depending on the application.
(8) Other categories refer to some glassware other than the above various glass instruments: such as alcohol lamps, dryers, crystallizers, watch glasses, mortars, glass valves, and the like.
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