Beating and Freeness (Schopper Riegler)
The Schopper Riegler Beating and Freeness Tester is designed to determine the rate of drainage of a dilute pulp suspension and express it in terms of the Schopper Riegler (SR) value.
The SR value is the inverse of the volume of water collected divided by 10. The rate of drainage is related to the work done on the fiber during beating and refining.
