Downloaded from https://www.everyspec.com MIL-STD-81OD ~ 19 Jllly1983 (2) lf2stsemdoyirr (a) test itenm. Hazardous test items will generally require longer teats than nonhazardous items to establish confidence in teSt results. Since induced conditions are much more severe than natural conditions, potential problems associated with high temperature/high relative humidity will be revealed sooner, and the results can be analyzed with a high degree of confidence. Consequently, hazardous test items should be exposed to extended periods (double the normal periods) of conditioning, depending upon the geographical category to which the materiel will be exposed (see table 507.2-II, cycles 4 and 5).
Each test can be terminated after the quick-look .. level has been reached if the materiel has failed the visual or functional checkout or,if deterioration is obvious. (b) dous test items. Induced conditions are much more a severe than natural conditions and potential problems associated with high temperatures/high humidity will thus be revealed sooner; and the results’can be analyzed, in most cases, with a high degree of confidence. Nonhazardous test items should be exposed to test durations as specified in table 507.2-II, cycles 4 and 5, depending upon.the geographical category to which the materiel will be exposed.
Each test can be terminated after the quick-look level has been reached if it has been determined that the test item has already failed the test and additional testing is futile, or if deterioration is ‘obvious. (3) Test emDlovti DrOcedure III - ~ Based on“past experience, a minimum of 10 cycles is recommended to reveal potential test item problems. For the test items incorporating seals to protect moisture- sensitive materials, e.g., pyrotechnic, longer test durations may be required. (4) Quick-look. After a relatively short period of testing haa elapsed, the test item may be given a visual inspection and operational checkout, and a decision may be made to continue or atop the teet.
The time after which a quick look can be made is different for each test cycle and is specified in table 507.2-II. Termination at this time (or at any time before completion of the specified test durations) should be considered if a failure or ‘Ino-test”is accepted. A comDlete test cycle is still required but is not recommended on the same test item. c. &t item c~. During performance of the temperature- humidity procedures of this method, the teat item will be configured as specified below or as specifically outlined in the requirements documents.
Test item configuration must be selected to reproduce, as closely as technically possible, the configuration that the test item would asiume when deployed. The following configurations should be considered, but the worst-case situations are usually used. (1) In its assigned shipping/etorage container. . (2) out of deployment mode. its shipping/storage container but not set up in its ,. NETHOD 507.2 19 July 1983 507.2-10