MIL-DTL-12883F
4.7.15 Porosity (ceramic sockets only) (see 3.5.14). Test specimens shall be complete ceramic socket
bodies used in the fabrication of production units, or complete ceramic socket assemblies. Samples of the
ceramic material alone are not acceptable as test specimens. The following details shall apply:
a. The apparatus shall consist of a suitable pressure chamber of such dimensions as to
accommodate the specimens when immersed in the dye solution, with arrangements for obtaining
and maintaining the required pressure for the required time.
b. A solution of 1 gram of basic fuchsine in 1 liter of 50 percent alcohol shall be used. If a denatured
alcohol is used, one should be selected which does not react with the dye to cause fading of the
color.
(1) The specimens shall be placed in the pressure chamber and completely immersed in the
fuchsine solution.
(2) A pressure of 4,000 pounds per square inch (psi) (27.6 megapascal) ± 10 percent, for
approximately 15 hours, or an optional pressure of 10,000 psi (68.9 megapascal), ± 10
percent, for 6 hours shall be used.
(3) Immediately after the test pressure has been relieved, the specimens shall be removed from
the chamber, thoroughly dried, and broken for visual inspection under 10x magnification.
c. After testing sockets shall meet the requirements of 3.5.14.
4.7.16 Salt spray (corrosion) (see 3.5.15). Unmated sockets shall be tested in accordance with method
1001 of MIL-STD-1344, test condition B. After testing sockets shall meet the requirements of 3.5.15.
4.7.17 Altitude immersion (when specified) (see 3.5.16). Sockets shall be tested in accordance with
method 1004 of MIL-STD-1344 (see 3.5.16). After the third cycle, while the samples are still in the salt
solution, the insulation resistance and dielectric withstanding voltage tests of 4.7.3 and 4.7.4.1,
respectively, shall be performed. After testing sockets shall meet the requirements of 3.5.16.
4.7.18 Resistance to solvents (3.5.17) . Sockets shall be tested in accordance with MIL-STD-202,
method 215. After testing sockets shall meet the requirements of 3.5.17.
4.7.19 Solderability (see 3.5.18). Socket contacts shall be tested in accordance with MIL-STD-202,
method 208. After testing sockets shall meet the requirements of 3.5.18.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirement shall be as specified in the
contract or order (see 6.2). When actual packaging of material is to be performed by DoD personnel, these
personnel need to contact the responsible packaging activity to ascertain requisite packaging requirements.
Packaging requirements are maintained by the Inventory Control Point's packaging activity within the
Military Department or Defense Agency, or within the Military Department's System Command. 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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