The tests are split-up in three classes of problems:
_110 Reports on potential (pseudo/real) lattice centering or cell halving.
_111 Reports on potential additional (pseudo/real) inversion centres.
_112 Reports on potential additional (pseudo/real) rotation axes and mirrors.
Failure of each of these tests results in an ALERT Level B.
Note: Disordered atoms are not taken into account in the tests.