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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VWS Storage Jar 40 ltr LA612 - General Lab (1 Supplier)
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VWS Storage Jar 75 ltr LA613 - General Lab (1 Supplier)
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VWS Wall Assembling Kit LA591 - General Lab (1 Supplier)
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VWS Wall Assembling Kit LA592 - General Lab (1 Supplier)
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Wheaton Screw Caps 20-400 Black 240706-01 - General Lab (1 Supplier)
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WINGED PLUG BL LDPE Ø10, 3000/BAG (1 Supplier)
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WINGED PLUG BL LDPE Ø13.5 1500/BAG (1 Supplier)
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WINGED PLUG GN LDPE Ø10, 3000/BAG (1 Supplier)
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WINGED PLUG GN LDPE Ø13.5 1500/BAG (1 Supplier)
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WINGED PLUG NA LDPE Ø13.5 1500/BAG (1 Supplier)
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WINGED PLUG PK LDPE Ø10, 3000/BAG (1 Supplier)
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WINGED PLUG PU LDPE Ø10, 3000/BAG (1 Supplier)
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WINGED PLUG RE LDPE Ø10, 3000/BAG (1 Supplier)
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WINGED PLUG WH LDPE Ø10, 3000/BAG (1 Supplier)
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WINGED PLUG WH LDPE 13MM (1 Supplier)
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WINGED PLUG YE LDPE Ø10, 3000/BAG (1 Supplier)
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Witeg Sample tubes PS 4ml, 5 449 001 - General Lab (1 Supplier)
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Witeg Sample vials N-13, 4 ml 9 350 302 - General Lab (1 Supplier)
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Witeg Test Tube 15X165mm 2 580 001 - General Lab (1 Supplier)
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Witeg Test Tube DuranNs 14/23 2 588 002 - General Lab (1 Supplier)
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Witeg Test tubes 20:0.2ml graduated, 2 582 210 - General Lab (1 Supplier)
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