MIL-DTL-24215D
4.6.1.3 Group B inspection. Group B inspection shall consist of the tests specified in table V, in the
order shown, and shall be made on sample units which have been subjected to and have passed the
group A inspection.
TABLE V. Group B inspection.
Test
Requirement
Method
paragraph
paragraph
Shock
Vibration
Salt atmosphere
4.7.7
Thermal shock
Temperature coefficient (when specified)
4.7.10
Seal (when required)
Humidity (when required)
4.6.1.3.1 Sampling plan. One sample unit shall be selected from every 100 production units of each
type, or fraction thereof, for the group B inspection. If one or more fails to pass the group B inspection,
the lot shall be considered to have failed.
4.6.1.3.2 Disposition of sample units. Sample units that have been subjected to group B inspection
shall not be delivered on the contract or order.
4.6.1.3.3 Noncompliance. If a sample fails to pass group B inspection, the supplier shall take
corrective action on the materials, process, or both, as warranted, and on all units of product which can
be corrected and which were manufactured under essentially the same conditions, with essentially the
same materials and processes, and which are considered subject to the same failure. Acceptance of the
product shall be discontinued until corrective action, acceptable to the Government, has been taken.
After the corrective action has been taken, group B inspection shall be repeated on additional sample
units (all inspections, or the inspection which the original sample failed, at the option of the Government).
Group A inspection may be reinstituted; however, final acceptance shall be withheld until the group B
inspection has shown that the corrective action was successful. In the event of failure after reinspection,
information concerning the failure and corrective action taken shall be furnished to the contracting officer.
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