Test Tubes
Also known as culture or sample tubes, test tubes are a common piece of laboratory glassware made of clear plastic or glass tubing with a rounded U-shaped bottom. There are a multitude of lengths and widths but the most common are 10-20mm wide and 50-200mm long. Tubes are usually made from borosilicate glass or fused quartz so they can be placed over a source of heat. They are very resilient and can stand temperatures up to 300 degrees centigrade. As well as being round-bottomed, some test tubes can be flat-bottomed or conical-bottomed. Some can have a ground glass stopper or screw cap and some have a white glass area for labelling the samples with pencil. If they need to be heated, glass is preferred. Otherwise for culture tubes, they are made of polystyrene or polypropylene which are discarded after use. Plastic test tubes with a screw top are also called falcon tubes. Some may have prepared contents. For example, a blue top tube of 5ml could contain sodium citrate as an anticoagulant for medical testing. Test tubes are essential pieces of laboratory equipment used for the handling and culturing of all kinds of live organisms as well as storing samples of blood and other fluids.
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Bohlender Test tube 20 ml, PFA A 183-03 - General Lab (1 Supplier)
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Brand BOTTLE-TOP DISPENSER 2500ml Bottle 704020 - Dispenser/bottle-top flasks, amber soda-lime glass (1 Supplier)
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Brand Culture Tubes 16 x 160mm 114125 - Culture tubes, soda glass, not graduated (1 Supplier)
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Brand Culture TubeS AR-Glass with Even Border 114105 - Culture tubes, soda glass, not graduated (1 Supplier)
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Brand Culture TubeS AR-Glass with Even Border 114106 - Culture tubes, soda glass, not graduated (1 Supplier)
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Brand Culture TubeS AR-Glass with Even Border 114110 - Culture tubes, soda glass, not graduated (1 Supplier)
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Brand Culture TubeS AR-Glass with Even Border 114115 - Culture tubes, soda glass, not graduated (1 Supplier)
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Brand Culture TubeS AR-Glass with Even Border 114120 - Culture tubes, soda glass, not graduated (1 Supplier)
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Brand Culture TubeS AR-Glass with Even Border 114130 - Culture tubes, soda glass, not graduated (1 Supplier)
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Brand Culture Tubes With PP Screw Cap 113931 - Culture tubes, soda glass, not graduated (1 Supplier)
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Brand Culture Tubes With PP Screw Cap 113935 - Culture tubes, soda glass, not graduated (1 Supplier)
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Brand Culture Tubes With PP Screw Cap 113941 - Culture tubes, soda glass, not graduated (1 Supplier)
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Brand Dispenser Bottle top amber soda lime 704018 - Dispenser/bottle-top flasks, amber soda-lime glass (1 Supplier)
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Brand Graduated Test Tube 30ml 114324 - General Lab (1 Supplier)
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Brand Sample Tubes 16 x 100mm 114715 - General Lab (1 Supplier)
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Brand Test Tubes 20ml Pp 780763 - Micro tubes, PP, without screw cap (1 Supplier)
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Buchi Drzing Tubes + stopper 003007 - General Lab (1 Supplier)
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Buchi Sample tube 750ml 11058999 - General Lab (1 Supplier)
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Burkle Closure Cap for Burkle 25L Storage Bottl 0300-9000 - General Lab (1 Supplier)
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Burkle Closure cap, internal thread 3/4" PP 8535-0034 - General Lab (1 Supplier)
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Burkle Storage Case 3600-0021 - General Lab (1 Supplier)
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CAP BLUE 10MM SAFE-T-FLEX (1 Supplier)
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CAP BLUE 12/13MM SAFE-T-FLEX (1 Supplier)
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CAP BLUE 13MM SAFE-T-FLEX (1 Supplier)
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CAP BLUE 16MM SAFE-T-FLEX (1 Supplier)
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