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Test tube holder : ウィキペディア英語版 | Test tube holder A test tube holder can be made from wood or metal. 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 holder can be used to hold a test tube while it is being heated. Moreover, when heating the tube with liquid or solid contained inside, the tube holder ought to tightly hold a test tube in order for the tube to be safely held while heating. 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. Additionally, while using a test tube holder, the proper distance between the test tube holder and the top of the test tube is approximately 3 centimetres. == Structure == Structurally, jaws of a test tube holder are self-closed by a spring.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Test tube holder」の詳細全文を読む
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