Horiba Scientific 6560S-10C Instruction Manual page 55

 Hold the electrode so that it is perpendicular to the water-
resistant abrasive sheet.
 Polish the ion selective membrane by touching it lightly
Note Note
in parallel with the water-resistant abrasive sheet.
3
Rinse the electrode with pure water.
4
Wipe off the moisture.
Wipe off the moisture using soft and clean lint-free paper or cloth.
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