MIL-C-48286 Charge, Mine Ejection Assembly, M198

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MIL-C-48286A (PA)

4.3.3.6,3.2 After three (3) consecutive lots have complied

with the criteria of 4.3.3.6.3.1, one hundred twenty-five (125)

charge assemblies shall be selected from each lot for test.

The lot shall be rejected if two (2) or more samples are classed

defective.

4.3,4 Inspection Equipment. - Inspection equipment required

to perform the inspections prescribed in this specification is

identified in the Examination (4. 3.2) and Test Method (4.4)

paragraphs herein. See 6.3 for details concerning responsi-

bilities for Inspection design and approval.

4.4 Test Methods and Procedures

*4.4.1 Primer pin push test. - The charge assembly, less

propellant and wad, shall be mounted in an approved fixture

and be subjected to the specified load in the required direction.

Movement of the primer pin shall be detected by an indicator

or other approved measuring system. The test sample shall be

classed defective if it falls to comply with the applicable

requirements. Testing is non-destructive and only accepted

samples shall be-returned to the slot.

*4.4.2 primer pin to charge case resistance test. -

The resistance shall be measure d using a digital readout

ohmmeter that limits the measurement current to a maximum

of ten (10) milliamperes d.c. Any test sample failing to

comply with the applicable requirements shall be classed

defective. Testing is non-destructive and only accepted test

samples shall be returned `to the lot.

*4.4.3 Immersion test. - The charge assembly shall be

completely immersed under water and placed in a vacuum chamber.

All sealed areas shall be clearly visible. The pressure In the

vacuum chamber shall then be reduced to the required pressure

and the charge assembly shall be observed for leakage for the

specified time. Any bubbles coming from within the test sample

shall be considered leakage. Bubbles which are the result of

entrapped air on the exterior surface of the charge assembly

shall not be cause for rejection. The test sample shall be

classed defective if it fails to comply with the applicable

requirement. Disposition of samples shall be in accordance

with 4.3.3.5.

*4.4.4 Non-function tests -The charge assembly shall be

tested for specified requirements using an approved power-