PULPS - PREPARATION OF LABORATORY SHEETS FOR PHYSICAL TESTING - PART 3: CONVENTIONAL AND RAPID-KÖTHEN SHEET FORMERS USING A CLOSED WATER SYSTEM (ISO 5269-3:2008, IDT)
This Malaysian Standard specifies two procedures for preparing a closed water system which is in retention equilibrium, to be used for the preparation of laboratory sheets from pulps with a high fines content. One procedure is applicable to the preparation of laboratory sheets using the conventional sheet former and the other using the Rapid-Köthen sheet former. The sheets prepared prior to attaining retention equilibrium are discarded.