A cylindrical, laboratory glassware item, frequently made of glass or plastic, with specific dimensions of 13 mm in diameter and 100 mm in length, is commonly used for containing, mixing, and heating small amounts of liquid or solid chemicals during experiments. For example, a chemist might employ this vessel to observe a reaction between two reagents, or a biologist could use it to cultivate a small sample of microorganisms.
The utility of this laboratory staple lies in its manageable size, allowing for efficient handling and storage, and its suitability for a wide range of applications, from qualitative analysis to preparatory work. Its widespread adoption stems from a long history of use in scientific research, establishing it as a reliable and cost-effective tool for researchers across various disciplines.