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Page Title:
Table IV. Life test sample selection |
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|  MIL-T-85395(AS)
TABLE IV. Life test sample selection. 1/
Quantity to be
Quantity of equipments
selected for life test
offered for acceptance
1
First 25
1
Next 175
1
Next 300
1 for each additional 500
or fraction thereof.
When reliability tests are conducted, the life test may be omitted if, dur-
ing the reliability tests, quantity of equipments equal to or more than
that listed above receive at least 300 hours each of test time.
4.5.6.1 Life test conditions.
The life test shall be conducted under the
following simulated service conditions:
Temperature
Room ambient (30C 10C)
a.
Altitude
Normal ground (O - 5000 ft.)
b.
(0 - 1600 meters)
Humidity
Room ambient up to 90 percent relative
c.
humidity
d.
Input voltage
Nominal
e. Vibration
None
The life test may be run continuously or inter-
4.5.6.2 Life test period.
mittently.
Any period of operation shall be of sufficient duration to permit
Periodically, the test set shall be
the test set temperature to stabilize.
turned on and off several times, and put through its various phases of
operation.
4.5.6.3 Performance check. At approximately eight-hour intervals during the
The performance check shall
test, a limited performance check shall be made.
be proposed by the contractor and shall be made available to the procuring
activity (see 6.2.2).
4.5.6.4 Failure report.
In the event of a failure, the Government inspector
shall be notified immediately.
A report shall be made available to the
procuring activity upon completion of the test (see 6.2.2). In this report,
the contractor shall propose suitable and adequate design or material correc-
tions for all failures. The procuring activity will review such proposals and
determine whether they are acceptable.
4.6 Presubmission testing. No item, part, or complete equipment shall be
delivered by the contractor until it has been previously tested and inspected
by the contractor and found to comply with all applicable requirements.
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