However, the trend is that more and more of the bleaching is done with bleaching chemicals
that do not contain chlorine. This means that all oxidizing chemicals used in the sequence are
not included in the „active chlorine“ number and a new term has therefore been developed, i.e.
the oxidizing equivalent or OXE, Table 10.3. Thus, by using OXE all oxidizing bleaching
chemicals used in a sequence can be included in one number. However, in reality this theoretical
number should be used with caution as the same bleaching effect cannot always be expected
for different chemicals even if the OXE should be the same.