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|  MIL-T-23588C(OS)
4.2 Classification of inspections. Inspection of the pressure tans-
ducer shall be classified as follows:
(a) Preproduction inspection (paragraph 4.4)
(b) Quality conformance inspection (paragraph 4.5)
(c) Periodic production inspection (paragraph 4.4)
4.3 Sampling
4.3.1 Reproduction. A preproduction sample of three pressure trans-
ducers, manufactured in accordance with 3.2.2, shall be subjected to the
preproduction tests detailed in 4.4 at an activity designated by the pro-
curing activity. Acceptance of the preproduction sample shall be based
on no defects in the sample. Further production of the transducer by
the supplier, prior to the approval of the preproduction sample, shall
"be at the supplier's risk.
4.3.2 Lot size. Unless otherwise specified in the contract or order,
each shipment of units of product shall be a separate "inspection lot"
and may differ from the quantity specified in the total order or contract.
In any event, all units of a single "inspection lot" shall be made to the
same design, with the same materials and manufacturing techniques, and
shall be part of one continuous production run.
*
4.3.3 Periodic production samples. From each succeeding lot
of 3200or less hace passed the quality conformance inspection of
4.5, a random sample of five transudcers will be selected for submission
to an activity designated by the procuring activity to determine compli-
ance of the samples with the requirements of the contract, specification,
and drawings. The transducers shall be considered satisfactory if they
meet all specification and pertinent drawings requirements and withstand
the tests specified in 4.4 and 4.5. Failure of the periodic production
sample to comply with these requirements will result in the rejection of
the lot, as determined by the procuring activity.
*
4.4 Preproduction and periodic production inspection. The preproduc-
tion and periodic production samples, after satisfactorily passing the
quality conformance inspections detailed in 4.5, shall be subjected to
the following tests and examinations. Certified inspection data covering
the results of preproduction and periodic production inspections shall be
forwarded to the procuring activity.
*
4.4.1 Vibration
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