When rinsing with solvents, one or

When rinsing with solvents, one or two rinsing solvents can be used. Here, one or two burettes must be connected to each measuring point for this. The solvents must be adapted to the application: Solvent 1 must loosen the sample residue in the viscometer. Solvent 2 must remove the residue of solvent 1 and must be sufficiently volatile to be able to completely remove all solvent residues during the subsequent drying process. In some cases, the solvent used in the first step is already sufficiently volatile to be able to skip the second solvent. The following applies to those cases: if you only use one solvent, the burette(s) must be connected as solvent 22 via the address assignment (see Section 3.4).