76) Check that there is a system for listing measuring instruments in registers
and conducting periodic calibrations, and that the expiration of calibration
can be recognized easily.
77) Check that standards are established for redoing
measurements of products in stock if a measuring
instrument is found to be abnormal.
78) Check that there is a system for calibrating a measuring
instrument again after it stops working
and is repaired.
79) Check that measuring instruments are controlled according to
standards so that they are used and stored only in environments
in which their precision does not change.