Test Tube holder

Historical information

This is a test tube holder or rack and what are its uses?
A test tube holder is used in a laboratory and it is used to hold/support test tubes containing chemicals waiting for further operations. Although it is called a test tube holder, it is also used to

Read more: http://wiki.answers.com/Q/What_is_the_use_of_test_tube_holders#ixzz16ZofJVqD

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