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MIL-R-50746(MU)
8 August 1973
4.6.23 .2.2 Vibration "B". test. Perform this test Utilizing
the apparatus specified in Method 514.1 of MIL-STD-81O and in
accordance with Part 1 of Procedure I therein, except that the
vibratory conditions of 3.3.2.3.2 shall apply. Following vibration
exposure, examine the unit for structural failures, loose hardware,
wire breakage, and abrasion. Perform the tests of 4.6.3 through
4.6.22, except 4.6.16.2, to determine compliance with 3.3.2.3.2.
4.6.23.3 Shock test.  Perform this test utilizing apparatus
specified in Method 516.1 of MIL-STD-810, in accordance with Pro-
cedure I therein and with the conditions specified in 3.3.2.4. Perform
a visual-tactile examination for damage and loose parts.
the tests of 4.6.3 through 4.6.22, except 4.6.16.2. to determine
compliance with 3.3.2.4.
4.6.24 Sealing test. Perform this test utilizing the special
test equipment specified in 4.5.2.2.1. Pressurize the unit as specified
in 3.3.3. Measure the pressure loss over the applicable time period
to detemine compliance with 3.3.3.
4.6.25 Internal pressure test.  Perform this test utilizing the
STE specified in 4.5.2.2.1. Subsequent to meeting the sealing require-
ment, "dry flush" the unit with the nitrogen specifid in 3.3.4 and
establish a dry nitrogen atmosphere. Verify that the requirement of
3. 3.4 is met.
4.6.26 Interface test. This test shall be conducted utilizing
a limit gage to determine compliance with 3.3.5.
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