Test tube holder
[4] Moreover, when heating the tube with liquid or solid contained inside, the holder ought to tightly hold a test tube[5] in order for the tube to be safely held while heating.[6] Particularly, for liquid heating, when holding a test tube holder with a test tube, hold it such that it aligns with the lab bench and also point the open end of the tube away from yourself or anyone nearby.[8]Structurally, jaws of a test tube holder are self-closed by a spring and can be manually adjusted.[9] 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 objects.It also is used when wanting to burn something small that cannot be held using your hand.
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