What type of pipette is used to measure and deliver precise liquid volumes?

A volumetric pipette is specifically designed to measure and deliver a precise volume of liquid. Its construction includes a narrow stem and a bulb in the middle, which allows it to hold a fixed volume accurately. Unlike other types of pipettes, such as measuring pipettes or graduated cylinders, a volumetric pipette typically delivers one exact volume, ensuring high accuracy and precision in measurements. The markings on a volumetric pipette are specifically calibrated for one liquid volume, making it ideal for laboratory work where precision is critical, such as in titrations or when preparing standard solutions. This characteristic sets it apart from other measuring devices that may not provide the same level of accuracy or are designed for a broader range of liquid volumes.