For measuring liquids, which graduated cylinder size should be used?

Using the graduated cylinder closest to the desired measurement for accuracy is the best practice in laboratory settings. This approach minimizes the potential for parallax error—where the measurement reading can change depending on the angle from which the scale is observed. When selecting a graduated cylinder that is appropriately sized for the volume being measured, it allows for more precise readings with less room for error, ensuring better accuracy in the measurement.

Additionally, smaller graduated cylinders often have finer graduations, meaning that there are more markings and subtler increments, which aids in attaining precise volumes. Using a cylinder that is adequately sized based on the volume required also optimizes the accuracy of measurements, making it a best practice in laboratory and pharmacy environments.