MIL-DTL-55535A
TABLE II. Group A inspection.
Inspection
Requirement
Inspection
paragraph
paragraph
Visual and Mechanical Microphone
Response
Distortion
Signal-to-noise ratio
Earphone
Response
Distortion
Headset-Microphone Kit
Operational
4.5.2 Group B inspection. Group B inspection shall consist of the inspections specified in group B in
table IV and shall be made on samples, which have been subjected to and have passed group A
inspection.
4.5.2.1 Order of inspection within group B. Group B inspection shall be performed in any order, which
is satisfactory to the Government.
4.5.2.2 Sampling plan. A sample of parts shall be randomly selected in table III. If one or more
defects are found, the lot shall be rescreened and defects removed. All failures occurring during testing
shall be documented and investigated to determine root cause. Acceptance of the product shall be
discontinued until corrective action, which is acceptable to the procuring activity, has been taken. After
corrective action has been taken, a new sample of parts shall be randomly selected in table III and the
group B inspection repeated. If one or more defects are found in the second sample, the lot shall be
rejected and shall not be supplied to this specification.
TABLE III. Group B sampling plan.
Sample size
Lot size
group B
2 to
25
2
26 to
50
3
51 to
90
4
91 to
150
5
151 to
280
6
281 to
500
7
501 to 1,200
8
1,201 to 3,200
9
Over 3,200
5 per
thousand
10
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