TB 9-4931-537-24
VISUAL INSPECTIONS AND INTERCOMPARISONS
This section provides guidance and procedures applicable to visual
inspections and intercomparisons of measurement standards.
13. Applicability. This section is applicable to TSAs and ARNG that ship, or transport,
their measurement standards to another calibration activity, not located in the same
building, for calibration support.
a. Visual Inspection
(1) A visual inspection will be performed on measurement standards that are
received from another calibration activity. These inspections are performed to assure that
standards have not been damaged or degraded during transportation. Visual inspections
are required as follows:
(a) All measurement standards will be visually inspected upon return from the
supporting calibration activity.
(b) Visual inspections will be sufficient to assure that no physical damage
occurred during shipment which would impair operation of the standard or degrade its
measurement capabilities. When a visual inspection indicates that a possible out-of-
tolerance condition exists, reliability checks will be performed when the capability to make
such measurements exists. If the capability does not exist, the item will be returned to the
supporting activity.
(c) A check will be made to ensure all labels and forms have been
annotated properly.
(2) Records
(a) Data resulting from visual inspections will be recorded on the reverse side of
the calibration test report, or in a separate logbook. When a calibration report is not
furnished, data will be recorded on a separate record. As a minimum, data will include:
date of visual inspection, condition of standard, and initials of person performing
inspection. When damage is observed, a short narrative explanation of the damage,
suspected cause, and corrective action taken will be recorded.
(b) These records will be retained by the owner of the standards for three
consecutive calibrations. Records may be retained for a longer period when required for
historical data.
NOTE
The visual inspection data annotated on test reports may be
transcribed to a separate log. This would eliminate the need to
maintain non-current test reports on file.