Although liberation achieved of particles bigger than 500 lm is
only moderate, following the parameters LD and LC, the parameter
Blib exceeds 90%. This displays the need of a scale to evaluate the
values of Blib as well as Bsep. One simple way is to use a classification
in three groups: good results (B > 99%), intermediate results
(99% 6 B 6 95%), and insufficient results (B < 95%).