Technical Information Sheet
Calibration Methods for Liquids: Standing Start and Finish
Unless a liquid is volatile or hazardous it can usually be contained in an open vessel. As a result, calibration standards are usually classified as being bucket and stopwatch systems. The bucket is a container which is weighed or has a known volume. The stopwatch is a method of measuring the time to fill the bucket. Static methods of calibration are based on collecting fluid in the bucket and determining its quantity by a static measurement, although dynamic methods are available.
What is discussed here is a standing start and finish method based on a gravimetric (weighing) method. It is the simplest method available and can be used for both high and low accuracy calibrations.