13. card operated locks
It is fitted with
recording
device which
register time of
use and the
identity of the
user
14. Change key
lis a key on the
lowest level of a
master keying
system
ldistinguished
from a master key .* change key is
not a master
key
15. Grand master key - it opens all kinds
of locks in a building
Master key - operates only one section,
floor or department of a building
Sub-master key - a key that will open
the lock of a particular area
16.
17. Key Control
Key Cabinet - a cabinet that will have to be
of sufficient size to hold the original key to
every lock in the system
Key record - Some administrative means
must be set up to record code number of the
locks and to whom the keys of specific locks
was issued.
Inventories - periodic account must be made
of all diplicates and original keys in the hands
of the employees whom they have been issued.