What do TD and TC signify regarding glassware in a laboratory?

In laboratory settings, TD and TC refer to specific types of glassware that indicate how the containers are designed to be used. When glassware is labeled as "To Deliver," it means that the container is intended to precisely dispense a specific volume of liquid when poured out. This is typically found in calibrated pipettes and certain types of volumetric flasks.

On the other hand, "To Contain" glassware is constructed to hold a particular volume of liquid without focusing on the amount dispensed when pouring out. This is commonly seen in beakers and graduated cylinders. Understanding this distinction is crucial in accurately measuring and transferring liquids in a laboratory to ensure proper experimentation and analysis.

This knowledge is foundational for laboratory technicians and analysts, as using the correct type of glassware can impact experimental results and data accuracy.