Downloaded from https://www.everyspec.com MIL-STD-810D 19 July .1983 b. Eestrlatlon. . . This method does not necessarily duplicate Service conditions but is used to verify the integrity of the test item’s seals. c. ~. (See General Requirements,’4.4.4.) This test should be performed before and after structura~ tests such as shock and vibration aid in determining the test item’s watertightness after dynamic tests. to ,,. .,. I d. M@ variaM2afi. This method consists of one test procedure with ~ several related test conditions that must be given values before the test is initiated, such as: (1) Test item configuration. ; ~~ .,, .. . .. ., . : (2) Preheat temperature. .,, (3) Depth of immersion.
(4) Duration of immersion. (5) Additional guidelines as appropriate. ., I-3.1 ~ce of test DrOCedurs2 a. X.setob tectiv?a. The primary objectives Df the leakage (imersion) teat are to determine whether: ,. (1) ‘fhetest item can be immersed in wateriithout penetration of the water into the test item. o (2) The penetration of any water.into the test item dill cause operational degradation of the test item. (3) The test item can be operated safely following immersion. (4) Other possible effects may be caused “bywater leaking into the test item. . . ., Based Dn this information and tbe purpose of the test item, determine any variations to ‘thebasic test that are required. b. c lea-.
This procedure is used to test relatively small teat items (man-packed or man-portable for the most part) that employ seals or gaskets to prevent water penetratim into the interior.1/ .. 1-3.2 Ct@ice Of related test cond. iou ! a. ~. The configuration of the test item is an important factor affecting water penetration into the test item. The fol- . lowing are examples of configuraticms‘t& consider: (1) In a shipping/storage Container or transit case: I 1/ Shelter-size test items may be subjected to the’fording tests of MIL-S-55286 or MIL-S-55541. MSTHOD 512:2 19 July 1983 512.2-2 ;