b. The sand and dust mixture outlined in the TOP shall
be used with the sand and dust feeder calibrated to dispense the
mixture at a rate of 100 ± 25 grams per minute per square meter
over the area concerned.
c. Lubricated weapons shall be placed in a mount inside the
dust chamber, along with the required ammunition. All dust covers
shall be closed.
d. The dust dispenser shall be turned on and allowed to
operate for 1 minute before firing.
e. The function and casualty firing schedule for 500 rounds
shall be followed for each weapon. The cyclic rate
measurements are not required for this test. All fired cases
shall be inspected for defects.
4.7.12 Corrosion. The sample (100 rounds linked and 300
rounds loose) shall be subjected to the salt-fog test outlined in
method 509.2 of MIL-STD-810. After 48 hours of exposure to the 5%
mixture, the sample shall be examined, its condition documented,
and the lose rounds shall be loaded into magazines. The rounds
shall then be chambered and fired in the specified weapons.
a. One half of the sample cartridges shall be subjected
to the conditioning schedule outlined in Table VI for a period
of 10 days. The other half of the sample cartridges shall
be set aside for testing in accordance with 4.7.14.b.
b. Following the storage period, the cartridges shall be
fired for cyclic rate to the 500 round function and casualty
firing schedule. The same firing schedule shall then be repeated
with the exact same weapons using the non-conditioned half of the
c. For each weapon type, record the average cyclic rate
obtained with conditioned cartridges, the average cyclic rate
obtained with cartridges that were not conditioned and their
d. The estimated time required to clear any jams or
stoppages shall be recorded for each incident.