What is the accuracy ratio of a volumetric pipette?

The accuracy ratio of a volumetric pipette is typically around 1:1000, which indicates that the errors in measurement are relatively small compared to the volume being measured. Volumetric pipettes are designed for precise measurements of liquid volumes, usually a single specific volume, and are calibrated to minimize errors.

The 1:1000 accuracy ratio means that for every 1000 parts of volume, there is an acceptable error of 1 part. This high level of accuracy makes volumetric pipettes a preferred choice for laboratory settings where precise measurements are critical, such as in quantitative analysis or preparing standard solutions.

In contrast, other options reflect lower accuracy ratios which would indicate greater potential measurement errors, making them less suitable for tasks requiring high precision. Understanding these differences helps ensure that the appropriate measuring devices are utilized based on the required accuracy in various laboratory applications.