Method for measuring the rate of flow of liquids.

摘要

Disclosed is a method for determing the rate of flow of a liquid material (10) from a closed container (1) to a reaction vessel during a manufacturing process by measuring the rate at which air enters the container to replace the liquid material being transferred to the reaction vessel. To achieve this measurement the container has closed inlet and outlet valves (4) and an air vent (13) to which is attached an inverted U-tube (12) at the open end (14) of which is a flow meter (15) calibrated (18) in terms of rate of flow of liquid material, and including a pointer (17) opposite said calibrations to give a visual display of said rate of flow.