j. The foregoing are only a few examples of the parameters that require
cross-checking and the examples of records the calibration technician must
Care must be used on maintaining the cross-check records, and
they should be analyzed frequently for trends and discrepancies. The more
time the record covers, the more useful it becomes.
It will help to
pinpoint common failures for particular standards. Where the deviations do
not vary by a significant amount during the interval between each
calibration, the probability of the standards remaining within tolerance is
very high. Therefore, it is very important to maintain an accurate cross-
NOTE: DA Form 2416 (Calibration Data Card) will not be used for cross-
checking purposes. DA form 2417 (Rejected Instrument Tag) (red-tag) will be
used for cross-checking purposes when a standard is found to be out-of-
tolerance or malfunctioning.