This part of ISO 5267 specifies a method for the determination of the drainability of a pulp suspension in water in terms of the Schopper-Riegler (SR) number.
DS/EN ISO 5267-1/AC:2002 history
2002DS/EN ISO 5267-1/AC:2002 Pulps - Determination of drainability - Part 1: Schopper-Riegler method
2000DS/EN ISO 5267-1:2000 Pulps - Determination of drainability - Part 1: Schopper-Riegler method