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Appendix D: Chemical CompatibilityTest procedure |
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|  MIL-C-70725A (AR)
APPENDIX D
Chemical CompatibilityTest procedure
10.0 SCOPE
10.1 Scope. This appendix gives test procedures for
performing the Chemical Compatibility Test.
20.0 APPLICABLE DOCUMENTS
This section is not applicable to this appendix.
30.0 PURPOSE
30.1 Purpose. To determine the durability of cartridges
when brought into contact with various lubricants, cleaners and
solvents used or available for use, in weapon and military
vehicle maintenance.
40.0 EQUIPMENT
40.1 Equipment. Equipment used in this test shall be
approved by the Government (see 6.2) prior to testing.
40.2 Weapons. Weapons shall conform to the dimensions
shown on the applicable drawings.
40.3 Lubricants. The lubricants, solvents and chemicals to
be used are as indicated in Section 3.
50.0
TEST
PROCEDURES
The following procedure shall be
50.1 Pre-firing.
followed:
a. The weapon containing an M2 training bolt shall be
assembled in the test fixture.
b. One thousand cartridges shall be divided equally
among the required chemicals. The cartridges shall be immersed
in the assigned chemical for one minute at a depth of 2.54 cm (1
inch) above the case rim with the cartridge laid horizontally to
the chemical. After one minute, the cartridges are removed, set
base down in a storage rack and allowed to drain naturally for
24 hours.
D-1
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