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en.wikipedia.org/wiki/Test_tube_holder

Purpose[edit]. The purpose of a test tube holder is to be used only to hold a test tube as it is not structured for flasks or other heavier ...

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, ...

www.ask.com/youtube?q=Uses+of+Test+Tube+Holder&v=34ecngjMi9g
Nov 6, 2016 ... how to keep glass test tubes and how to use a test tube holder.

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.ask.com/youtube?q=Uses+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 ...

www.quora.com/What-is-a-test-tube-holder-used-for

Holding test tubes? ... Holding test tubes? ... What are some common uses of test tube holders? What is a hard test tube? What are the purpose of a test tube ...

www.quora.com/What-are-some-common-uses-of-test-tube-holders

Test tubes for general chemical work are usually made of glass, for better resistance to heat and corrosive chemicals and longer life. Tubes made from ...

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 ...