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|  MIL-C-48654(AR)
submit for approval inspection equipment designs in accordance
with the terms of the contract. See Section 6 of MIL-A-48078 and
6.3 herein.
4.5
Methods of inspection
4.5.1 Moisture content of black powder. The moisture content
of black powder shall be determined in accordance with the
procedure specified in MIL-P-223. The samples shall be randomly
selected from each eight hours production. Any failure to comply
with the applicable requirement shall be cause for rejection of
the eight hours production represented by the sample. If loading
has begun, ignition cartridges loaded with the non-conforming
black powder shall be rejected.
4.5.2 Sensitivity
4.5.2.1 Nonfunctioning. The primer head shall be assembled
to a suitable fixture. The firing pin of the test fixture shall
be adjusted so that impact will be on the center of the firing
plug of the primer. A weight of 2.95 pounds, minimum, shall be
dropped on to the firing pin from a height of 3/16 inch, minimum,
as if to function the primer. The height of drop shall be
measured as the height from the top of the firing pin to the
bottom of the weight. Any primer which functions shall be classed
defective. Primers used in this test shall not be returned to the
lot.
4.5.2.2 Functioning. The primer head shall be assembled to
an appropriate test fixture. The firing pin of the test fixture
shall be adjusted so that impact will be 0.05 inch off center of
the firing plug of the primer. A weight of 2.95 pound, maximum,
shall be dropped on the firing pin to function the primer from a
height of 1 3/4 inches, maximum. The height of drop shall be
measured as the height from the top of the firing pin to the
bottom of the weight. Any primer that fails to function shall be
classed defective.
4.5.2.3 Safety drop test. The test assemblies shall be
assembled into inert-loaded, standard 60mm cartridges. Each
cartridge shall be dropped twice from a height of five feet on an
anvil top surface. For the first drop, the cartridge shall be in
the base (fin) down orientation. For the second drop, the
cartridge shall be in the nose (fuze) down orientation. The drop
height shall be measured from the lowest point of the cartridge
orientation to the ground. Any test assembly which functions as a
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