MIL-STD-790G
5.2.9 Statistical process control. When specified in the individual component specification, a statistical process control (SPC) program system in accordance with EIA-557 shall be established.
5.2.10 Acceptance criteria for incoming materials and work in-process. Acceptance criteria shall be identified including type of inspection, the materials group inspected, the sampling and test procedures, the date of completion of inspection, the amount of material tested, acceptance rejection criteria and frequency of inspection.
5.2.11 Handling and packaging procedures. Handling procedures shall be established to provide physical protection of material during all sequences of production and inspection. Assembled parts shall be physically protected during testing and conformance inspections. Handling and packaging procedures shall be prepared to cover storage of parts in a controlled storage area, their removal from the area, and their preparation for shipment.
5.2.12 Materials.
5.2.12.1 Incoming, in-process, and outgoing inventory control. The methods and procedures shall be identified which are used to control storage and handling of incoming materials, work in-process, and warehoused and outgoing product in order to achieve such factors as age control of limited-life materials, and prevent inadvertent mixing of conforming and nonconforming materials, work, or finished product. Procedures shall be maintained for controlling the receipt of acquired materials and supplies. The procedures shall provide the following:
a. Withholding received materials or supplies from use pending completion of the required inspection or tests, or the receipt of necessary reports.
b. Segregation and identification of non-conforming materials and supplies from conforming materials.
c. Identification and control of limited-life materials and supplies. d. Identification and control of raw materials.
e. Assurance that the required test reports, certification, etc., have been received.
f. Clear identification of materials released from receiving inspection and test to clearly indicate acceptance or rejection status of material pending review action.
5.2.12.2 Conforming materials. The manufacturer shall maintain a positive system of identifying the inspection status by means of stamps, tags, routing cards, or other control devices. In controlling the status of materials, the manufacturer shall establish suitable controls to assure that identification of status is applied under the jurisdiction of authorized inspection personnel.
5.2.12.3 Nonconforming materials. Nonconforming materials shall be controlled by a positive system of identification to prevent their inadvertent use or intermingling with conforming materials.
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