Pack of 100 Rimless test tube

Test tube is a common piece of laboratory equipment used for holding, mixing, and heating small quantities of substances during experiments. Test tubes come in various sizes, ranging from a few centimeters to several centimeters in length. They are versatile tools and can be used for a wide range of purposes in chemistry, biology, and other scientific disciplines, such as conducting reactions, observing chemical changes, or culturing microorganisms.

試管是一種常見的實驗室設備，用於在實驗中盛放、混合和加熱少量物質。試管有各種尺寸，長度從幾厘米到幾厘米不等。它們是用途廣泛的工具，可用於化學、生物和其他科學學科的多種用途，如進行反應、觀察化學變化或培養微生物。