MIL-PRF-46108C
4. VERIFICATION
4.1 Verification alternatives. Alternative test methods, techniques, or equipment, including the application of
statistical process control, tool control, or cost effective sampling procedures may be proposed by the contractor.
Acceptable alternative verification approaches shall be identified in the contract.
4.2 Classification of inspections. The inspection requirements specified herein are classified as follows:
a. Pre-production sample (see 4.2.1)
b. First article inspection (see 4.2.2)
c. Conformance inspection (see 4.2.3)
4.2.1 Pre-production sample. Unless otherwise specified (see 6.2), the pre-production sample shall be
manufactured by the same methods proposed for the manufacture of subsequent production lots. The pre-
production sample shall be subjected to all examinations and tests specified herein. If the pre-production sample is
rejected, it will be returned to the contractor. Before submitting another pre-production sample, the contractor
shall furnish the Government information concerning previous rejection, and the action taken to correct the defects.
Subsequent quantities shall not be considered for acceptance until the approval of the pre-production sample has
been obtained.
4.2.2 First article inspection. When required (see 3.1.1), the first article sample shall be examined for compliance
with the requirements and verifications listed in sections 3 and 4. All samples shall be produced with materials
and processes proposed for use on production transparent armor. Inspection shall be carried out by the
contractor under Government surveillance, when specified (see 6.2).
4.2.3 Conformance inspection. Conformance inspection for acceptance of production transparent armor shall be
conducted on a recurring basis and include the examinations and tests in sections 3 and 4.
4.2.4 Lot formation. An inspection lot shall consist of all the transparent armor produced for one order of a
single part number, from an identifiable production period, from one manufacturer, submitted at one time for
acceptance.
4.2.5 Initial production lot. The number of random samples selected for inspection, from each initial production
lot of components, shall be defined by the procuring activity (see 6.2).
4.2.6 Production lots after initial lot. The number of random samples selected for inspection, from each
production lot of components after the initial lot, shall be defined by the procuring activity (see 6.2).
4.2.7 Acceptance and rejection. The selected armor samples shall meet the requirements in table I for the
represented lot to be acceptable. Failure of any test samples to meet the requirements in table I shall constitute
rejection of the entire lot which they represent. Unless otherwise specified (see 6.2), the ballistic tests shall be
conducted and the test results accepted prior to shipment of the lot of armor represented by the test samples.
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