Recoded "das12g" to make invalid units missing, fixes #190
Recoded "das12f" to make invalid units missing, fixes #189
Recoded "das12e" to make invalid units missing, fixes #188
Recoded "das12d" to make invalid units missing, fixes #187
Recoded "das12c" to make invalid units missing, fixes #186
Recoded "das11g" to make invalid units missing, fixes #185
Recoded "das11f" to make invalid units missing, fixes #184