MIL --- DTL --- 3691E
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classi-
fied as follows:
(a) First article inspection (see 4.2)
(b) Conformance inspection (see 4.3)
4.2 First article inspection.
4.2.1 Lotting. The first article lot shall consist of at least 970 kg of Violet Dye Mix manufac-
tured using the same methods, materials, equipment, and processes as will be used during regu-
lar production. The first article sample shall be submitted for inspection and approval in
accordance with the terms of the contract. If there is any change of vendors, methods, materi-
als, equipment, facilities, or if there is a break in production of 90 days or more, the contracting
Officer shall be notified and at the discretion of the Government, a new first article sample may
be required.
4.2.2 Sampling. The contractor shall randomly select three representative samples, of
approximately 200g each, from the first article lot of dye and place each sample in a clean dry
container labeled to identify the first article lot.
4.2.3 Inspection procedure. Each first article sample shall be subjected to all of the inspec-
tions specified in the classification of characteristics in 4.3.5.
4.2.4 Acceptance criteria. If any first article sample fails to comply with any of the applica-
ble requirements, the first article sample shall be rejected.
4.3 Conformance inspection.
4.3.1 Lotting. A lot shall consist of the dye produced by one manufacturer, at one plant,
from the same materials, under the same manufacturing conditions, and at the same time. The
minimum lot size shall be 2270 kg. In the event the lot is a batch operation (see 6.7), several
batches may be mixed together to form a lot, provided the batches are subjected to some physi-
cal mixing operation intended to make the final product uniform and homogenous.
4.3.2 Sampling. The contractor shall randomly select three representative samples, of
approximately 200g each, from the lot of dye and place each sample in a clean dry container
labeled to identify the lot represented.
4.3.3 Inspection procedure. Each dye sample shall be inspected in accordance with the
classification of characteristics in 4.3.5. Failure of any sample to conform to any characteristic
in the classification of characteristics based acceptance criteria specified therein shall be cause
for rejection of the lot represented.
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