8.1 Preparation of Electrodes—When a Ag/AgCl reference
electrode is used for the titration and it contains an electrolyte
which is not 1M–3M LiCl in ethanol, replace the electrolyte.
Drain the electrolyte from the electrode, wash away all the salt
(if present) with water and then rinse with ethanol. Rinse
several times with the LiCl electrolyte solution. Finally, replace
the sleeve and fill the electrode with the LiCl electrolyte to the
filling hole. When refitting the sleeve ensure that there will be
a free flow of electrolyte into the system. A combination
electrode shall be prepared in the same manner. The electrolyte
in a combination electrode can be removed with the aid of a
vacuum suction.