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|  MIL-N-81604C(AS)
Para 4.4.2
(cont)
Quantity to be Selected
Quantity of Equipments
for Sampling Test
offered for Acceptance
1 (1)
*
First 10
1
Next 50
1
Next 75
1
Next 100
1 for each additional
200 or fraction thereof
4.4.2.1 Scope of Tests - As a minimum, each equipment selected
for sampling tests shall be subjected to the following tests:
Complete operational test at ambient room condi-
a.
tions, making all necessary measurements to assure
that all applicable specification requirements have
been met.
Operational test at certain environmental condi-
b.
tions. The conditions may vary for each equipment
tested and should be based on results of the pre-
production, initial production, individual, and
special tests.
*
Manufacturing run in test specified in 4.4.1.3,
c.
except that the test duration shall be 120 hours
with no restriction on the number of failures. How-
ever , each failure shall be analyzed as to cause
and remedial action necessary to reduce the possi-
bility of its recurrence in future equipment.
4.4.3 Relibility Assurance Tests - Reliability assurance tests *
shall be conducted using MIL-STD-781. Tests as required by both
the qualification phase-and the production acceptance (sampling) *
phase shall be conducted. Classification of failure shall be
in accordance with MIL-STD-781 and AR-34.
4.4.3.1 Qualification Phase - Prior to the acceptance of equip-
ments under the contract or order, a minimum of three sets shall *
be tested as outlined in MIL-STD-781, under the section entitled
.
(1)
One out of first ten need not be selected and tested if initial *
production tests are conducted. Sampling tests are not re-
*
quired when reliability assurance tests are conducted.
137
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