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en.wikipedia.org/wiki/Test_tube_holder

A test tube holder is used to hold Test Tubes. It is used for holding a test tube in place when the tube is hot or should not be touched. For example, a test tube ...

en.wikipedia.org/wiki/Test_tube

A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom. Test tubes are usually placed in special-purpose racks.

en.wikipedia.org/wiki/Burette

A burette (also buret) is a laboratory equipment used in analytical chemistry for the dispensing of variable, and for measuring the amount of, a chemical solution. It is a long glass tube with tapered end that are attached with a stopcock at ... Nominal volume, error and units are the basic knowledge in order to distinguish the ...

www.sciencecompany.com/Test-Tube-Clamp-Holder-P6285.aspx

This test tube holder, or clamp, is 6.25 inches long with finger grips. Holds any size test tube. The test tube holder is used to hold test tubes when they are hot ...

www.answers.com/Q/What_units_is_test_tube_measured_in

Test tubes are mesured in millileters also can be measured ulin fluid ounces. ... What is the Measurement unit for water flavor test? I can't imagine a unit for this, it is a qualitative .... What is the SI unit of a test tube holder? SI units refer to ...

www.coleparmer.com/i/cole-parmer-test-tube-rack-with-15-ml-tubes/0673927

Buy Cole-Parmer Test Tube Rack with 15 mL tubes and more from our comprehensive selection of ... Cole-Parmer Desi-Vac Desiccator, 3 L SI-06525- 08.

www.homesciencetools.com/chemistry/glassware-plasticware/test-tubes

Lab-quality glass & plastic test tubes and test tube stands for science applications . Quantity discounts + flat-rate shipping = savings. Order today!

www.spectrumchemical.com/chemicals/Test-Tube-Rack

Test Tube Rack found in: Heathrow Scientific Fold and Snap Test Tube Racks, Bel-Art Scienceware Switch-Grid Test Tube Rack, Labconco Round Test..

www.labconco.com/product/test-tube-holders/2443

Test Tube Holders are add-on accessories to the Lower Test Tube Spindle Rack. The Holders keep tubes upright. Constructed of Type 304 stainless steel.