What is degree sr of pulp?

Freeness of pulp is a measure of precisely how rapidly water can drain from a diluted fiber furnishes suspension. Standard tests of pulp freeness are based on gravity dewatering throughout a screen.

For the determination of the degree of refining (beating) of a pulp suspension in water and expressing it in terms of the Schopper-Riegler (SR) number, and to

In this study an ECF-bleached bamboo kraft pulp was compared with a bleached softwood kraft pulp (NBSK) as the reinforcement pulp in fine paper production.

8:30"This video shows a quick demonstration of how paper pulp freeness is tested There is also a rough" · Uploaded by Kevin Martin

Oven-dry weight of pulp x 100. Weight of pulp + water SR – higher numbers mean slower draining Separate sample required for each degree of refining.

PNEUMATIC FREENESS TESTER SR-1 model the drainage rate of a dilute pulp suspension. Drainage speed pulps. Measurement scale in SR degrees:.

Content description. A Freeness conversion chart for Canadian Standard to Schopper Riegler or Williams Slowness. Full content. Available in