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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_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 ...

teachertech.rice.edu/Participants/louviere/vms/science/labequipment.html

Used to plug a flask or testtube for safe keeping. Test Tube. Used to mix, heat, or store substances. Test Tube Rack. Used to hold test tubes. Test Tube Holder.

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

Many of the test tube holders are able to sink in water without tipping over the test tubes.Test tube racks are a great tool to have in the lab. Used mainly for ...

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.reference.com/science/uses-test-tube-holder-aefeed4421c79efb

Test tube holders are used to distance a person from potentially dangerous tasks when using chemicals in test tubes. They not only extend a person's reach, ...

ourpastimes.com/uses-of-a-test-tube-holder-12330556.html

Test tube holders come in two main types: tongs and racks. Tong types are either wood or metal. They're designed to grasp and transfer test tubes that are too ...

www.ask.com/youtube?q=What+Is+The+Used+Of+Test+Tube+Holder&v=34ecngjMi9g
Nov 6, 2016 ... how to keep glass test tubes and how to use a test tube holder.
www.ask.com/youtube?q=What+Is+The+Used+Of+Test+Tube+Holder&v=Wixoe-Ne-yI
Jun 22, 2017 ... Test tube holders come in two main types tongs and racks. Test tubes come in different sizes but they are generally used to conduct small scale ...