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|  MIL-T-52831E
4.5.2.9 Noise level test. Noise levels shall be measured conforming to MIL-STD-1474
requirements and reported in the format indicated by MIL-STD-1474, figure 7. As a minimum:
noise levels shall be measured when equipment is operating under full load. MIL-STD-1474,
5.1.2.1.4 contours shall be taken at not fewer than 12 equal (horizontal) arc increments, one
increment shall include data from the noisiest position. Additionally, the noise level at the
typical operating position shall be provided as dB(A) level. Failure to comply with
MIL-STD-l474 provisions shall constitute failure of this test.
4.6 Inspection of packaging. The preservation, packing and marking shall be examined to
determine compliance with section 5 requirements.
4.6.1 Unit of product. For purposes of inspection, a completed pack prepared for shipment
shall be considered a unit of product.
4.6.2 Sampling. Sampling for examination shall conform to MIL-STD-105.
4.6.3 Examination. Samples selected shall conform to 4.6.2 and shall be examined for the
following defects. AQL shall be 1.0 percent defective.
124.
Preservation not as specified.
125.
Packing not as specified.
126.
Marking not as specified.
5. PACKAGING
5.1 Preservation. Preservation shall be level A or C as specified (see 6.2).
5.1.1 Level A.
5.1.1.1 Preservation. Preservatives specified herein shall conform to the applicable
specifications listed and shall be applied in accordance with MIL-P-116.
5.1.1.2 Unprotected surfaces. Unprotected exterior metal surfaces requiring the application
of a contact preservative in accordance with MIL-P-116 shall be coated as follows:
5.1.1.2.1 Unfinished (not machined) surfaces. Unfinished exterior metal surfaces shall be
coated with type P-1 preservative.
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