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MIL-T-85472A(AS)
4.5.1.1 Examination of product.
Each test set shall be examined carefully
to determine that the material and workmanship requirements have been met.
4.5.1.2 Operational test.
Each test set shall be operated long enough to
permit the temperature to stabilize and to check sufficient characteristics
and record adequate data to assure required equipment operation.
4.5.1.3 Manufacturing run-in test.
Each test set shall be operated under
the following conditions for a period of 6 hours without failure. A failure
shall be considered as anything which causes malfunctioning of the test set.
Only those adjustments will be permitted which can be made using controls
that are accessible to the operator during normal use of the equipment.
Temperature
Room ambient
a.
Room ambient
b. Humidity
Vibration
Any selected frequency within range of
c.
20 to 30 Hz (excluding resonant points)
g's.
and a minimum amplitude of
The test set shall be vibrated (without vibration isolators) for a period of 10
minutes prior to the beginning of the 6-hour period of operation,  Where
feasible, the test set shall be operated during this vibration period for the
purpose of detecting flaws and imperfect workmanship. Operation within the
specified limits of satisfactory performance is not necessarily required during
the vibration period.  The direction of vibration shall be vertical to the
normal mounting plane for 5 minutes and lateral to the plane for 5 minutes.
Where it is not feasible to vibrate the test set in two directions, the
vertical shall be used.  During the 6-hour period of operation following the
10-minute vibration period, the test set shall be mechanically cycled
periodically through its various phases of operation. Should a failure occur,
the test set shall be repaired and the test started over, except that the 10-
minute vibration period need not be repeated when it is established that the
failure was not a result of vibration,  Should failures occur repeatedly,
corrective action shall be taken to eliminate this defect from future test
sets.
The 6-hour period specified above may be made up of several shorter
periods to conform to normal working hours.
4.5.2 Sampling tests.  Test sets selected for sampling tests shall first
have passed the individual tests.  Test sets will be selected for sampling
tests by the Government inspector in accordance with table II.
TABLE II.
Sampling test selection.
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