To hold test tubes so that the liquid inside does not spill.
Test tube stands have a very simple use. They are used to hold test tubes during experiments to prevent them from falling over and spilling.
Test tube rack is use to hold test tube when they are not in use.
we use test tube to hold chemicals and heat and chemicals.
The flask and the beaker are held up by a ring support with a wire gauze. The test tube is held with a Burette clamp. Sometimes a triangle can be used for all three but it has to be small enough to hold the test tube and large enough so the others will not to tip over.
No. A ringstand is a stand with a base with a large pole sticking out of it. that you can attach rings to. A wire mesh is usually placed on the ring for setting a beaker to be heated. A test tube clamp can be attached to the ring stand to hold a test tube, for say, heating it in a hot water bath.
use to hold test tube..
the answer is none
It is a clamp that holds a test tube -- for instance to hold a test tube while heating it without getting burned. It is made from a thick piece of metal wire that is shaped into a spring-loaded clamp to securely hold a test tube.Note the difference between a test tube clamp, and a test tube rack. A clamp is a way to hold a single test tube while heating the contents inside without actually touching the test tube itself. A rack is instead used to hold many test tubes at once in an upright position. See the Related Questions links below for more information on test tube racks.
The student raised the test tube above the stand clamp with crucible tongs.
When heating a test tube, you would use a test tube holder. It can also be used to hold/ support pipettes, etc. http://www.answers.com/mt/test-tube-holder
it is use to hold the test tube
When heating a liquid in a test tube, make sure to use a Bunsen burner or a hot plate, and gently heat the bottom of the test tube. Avoid heating the liquid too quickly to prevent bumping or boiling over. Use a test tube holder to hold the test tube and prevent accidental spills or burns.