User Guide

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corded after each addition (for best results at least 3 points
before and 3 points after the End Point). The End Point is
determined by the intersection of the two best lines through
the points. The titrant volume is multiplied by a factor to ob-
tain the sample chlorine concentration or can be read (only
in case of forward titration) straight from the graph if the PL
100/PL 101 graph-paper is used.