he chloride content of the bath and add sufficient hydrochloric acid to raise the chloride to approximately 80 ppm.
Note:
(ppm chloride add desired) (bath volume in liters) = mLs of 37% (concentrated HCI to add
425
Electrolyze (dummy plate) the bath for 3 hours at 20 ASF (2 ASD) while maintaining the brightener concentration by CVS, CPVSordilution Hull cell (the feed rate of PC-600 Replenisher should be about 0.2 to 0.5 mL/amp. hr, however, the initial feed rate for the first day may be high