MIL-DTL-14852D (AR)
6.9 Protective finish. Details of the proposed procedure
for zinc phosphate coating to be used by the contractor should be
submitted in writing to the Government Technical Agency and
written approval received prior to initiation of production. The
proposed procedures should include materials, processes and
equipment to be used by the contractor, detailed methods of
control including limits for time, temperature, concentration and
all other information pertinent to the processes. Approval of
processes, materials, or equipment implies no guarantee of
acceptance of the results obtained in use.
6.10 Process control of stress relief operation. A process
control document covering the stress relief operation should be
submitted to the technical agency through the contracting officer
for review and approval prior to the initiation of production.
This document should include descriptions of procedures,
equipment, process parameters, monitoring practices and
calibration procedures and frequencies to be used for the stress
relief operation. Data should be included showing, based on
temperature measurements, that the projectile bodies are at
minimum temperature for the minimum time in accordance with 3.2.2
when using the process parameters outlined in the process control
document. The process control document should be part of the
contractor's quality program plan. Revisions should be submitted
to the technical agency through the contracting officer for
review and approval.
6.11 Critical characteristic controls. This specification
contains critical characteristics. Provisions for critical
characteristic controls should be as outlined in the contract.
6.12 Definitions.
a. Acceptance Inspection Equipment (AIE). Any measuring
device that is traceable to the national or international
standard which is used to assure conformance of material to the
contract requirements.
b. Heat treatment. Heat treatment is understood to be any
thermal process which brings about a modification in the
mechanical and metallurgical properties of the metal involved.
c. Verification methods.
Analysis. Use of analytical methods and mathematical
formulas to determine if an item meets a requirement.
Demonstration. A functional test (for example
ballistic firing) that provides verification that a
requirement is met.
Examination. Inspections utilizing gaging or visual
means to assure conformance to a requirement.
Test. The conduct of specific procedures and methods
to provide data verifying a requirement is met.
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