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|  MIL-G-85231(AS)
4.5.6.1 Test conditions. The life test shall be conducted under the
following simulated service conditions:
Temperature
Normal room
a.
Altitude
Normal ground
be
Humidity
Room ambient
c.
DC Voltage
5 0.1 volts dc,
d.
28 0.1 volts dc,
+4 0.01 volts dc,
-4 0.01 volts dc
4.5.6.2 Test periods. The test may be run continuously or intermit-
tently. Any period of operation shall be of sufficient duration to permit the
control group temperature to stabilize. Periodically, the control group shall
be 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 test, a limited performance check shall be made. The performance check
proposed in this specification shall be subject to acceptance by the procuring
activity (see 6.2.2).
4.5.6.4 Test data. The contractor shall keep a daily record of the
performance of t he control group, making particular note of any deficiencies
or failures (see 6.2.2). In the event of part failures, the defective part
shall be replaced and the operation resumed for the balance of the test
period. A record shall be kept of all failures throughout the test. This
record shall indicate the following
a. Part type number
The circuit reference symbol number
b.
C.
The part function
Name of the manufacturer
d.
Nature of the failure
e.
f. The number of hours which the part operated prior to failure
In the event of a failure, the government
4.5.7.1 Failure report.
inspector shall be notified immediately. A report shall be prepared and made
available to the procuring activity upon completion of the test (see 6.2.2).
In this report, the contractor shall propose suitable and design or materizd
corrections for all failures which occurred (see 6.2.2). The procuring
activity will review such proposals and determine whether they are acceptable.
4.6 Electromagnetic interference (EMI) tests. EMI tests shall be
performed in accordance with MIL-STD-462 to determine that the control group
meets the requirements of MIL-STD-461 for Class A1 equipment (see 3.3.8).
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