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en.wikipedia.org/wiki/Test_tube_rack

Test tube rack is a laboratory equipment that is used to hold upright multiple test tubes at the same time. It is most commonly used when various different ...

www.universalmedicalinc.com/all-products/laboratory/organizers/test-tube-racks.html

Test tube racks are commonly found in a laboratory. Easily organize vials and test tubes in compact vial organizer racks that keep your laboratory neat.

www.reference.com/science/definition-test-tube-rack-cd3de8988348d7e1

A test tube rack is a wooden or plastic holder of test tubes in a laboratory. It has several small holes, each of which holds one test tube in an upright position.

www.reference.com/science/uses-test-tube-rack-63fedfb87f9d763a

Test tube racks are commonly used in laboratories to keep test tubes upright so ... to another, but it means that a test tube laid down on a table is prone to rolling.

www.medical-supplies-equipment-company.com/lab-equipment-supplies/laboratory-test-tube-rack-591.htm

While test tube rack options may seem a bit limited, you do have a lot of choices. ... This versatility means you can have a greater variety of test tube racks in the ...

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.wordreference.com/es/translation.asp?tranword=test-tube%20rack

test-tube rack - Translation to Spanish, pronunciation, and forum discussions.

www.amazon.com/Science-Purchase-Wooden-Test-Tube/dp/B002EJ2FD0

Just another review to add to the list of people who were disappointed that this item was not as described (or pictured). It's dark brown (okay), and much larger ...

www.freepatentsonline.com/4453639.html

Jun 12, 1984 ... The test tube rack as defined in claim 1 wherein the holding means comprises an aperture plate having a plurality of spaced apart apertures for ...