MIL-DTL-5099C
4.5.13 High altitude (low temperature). The indicator shall be placed in a chamber and
maintained at a temperature of approximately -65 °C (-85 °F) and a pressure equivalent to
50,000 feet for 4 hours. The indicator shall then be returned to atmospheric pressure and
maintained at a temperature of -65 ±2 °C (-85 ±4 °F) for an additional period of 44 hours. There
shall be no damage that would affect subsequent operation. Upon return to room temperature,
the indicator shall be subjected to and shall meet the requirements of the individual inspection.
4.5.14 Humidity. The indicator mounted with the dial face up shall be tested in
accordance with humidity testing procedure II, method 507, of MIL-STD-810. Within 24 hours
after completion of the test, the indicator shall be subjected to and shall meet the requirements of
the individual inspection.
4.5.15 Fungus resistance. The indicator shall be tested in accordance with fungus testing
method 508 of MIL-STD-810 except that the test period shall be 14 days. Any evidence of fungi
growth shall be cause for rejection.
4.5.16 Salt fog. The indicator shall be tested in accordance with salt fog testing
method 509 of MIL-STD-810. Upon completion of the test, the indicator shall be subjected to
and shall meet the requirements of the individual inspection.
4.5.17 Mounting lugs. The indicator case, with mechanism removed, shall be mounted
face-downward on the movable head of a suitable testing machine with the face of the case in a
horizontal plane so that the mounting lugs receive no added support. A suitable pin shall be
inserted through the hole in the mounting lug and attached to the pull strap. A load of
175 pounds shall be applied along the mounting hole axis toward the front of the case for a
period of 1 minute. Any evidence of fracture shall be cause for rejection.
4.5.18 Internal examination. The case of the indicator shall be opened and the internal
mechanism examined. Any deterioration or damage that could in any manner prevent the
indicator from meeting functional operation during its service life shall be cause for rejection.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as
specified in the contract or order (see 6.2). When packaging of materiel is to be performed by
DoD or in-house contractor personnel, these personnel need to contact the responsible packaging
activity to ascertain packaging requirements. Packaging requirements are maintained by the
Inventory Control Point's packaging activities within the Military Service or Defense Agency, or
within the military service's system commands. Packaging data retrieval is available from the
managing Military Department's or Defense Agency's automated packaging files, CD-ROM
products, or by contacting the responsible packaging activity.
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