U.S. Department of Defense MIL-STD-810C — MIL-STD-810C Environmental Test Methods Standard — PDF Manual Download

..4. MIL-STD-81OC . . Downloaded from https://www.everyspec.com - ,. a. Test duration. A test duration of 28 days is considered to be the minimum test perl.od. Since indirect effects and physical interference are not likely to occur in the relatively short time frame of the fungus test, extension of the exposure period to 84 days should be considered if a greater degree of certainty (lesser risk) concerning the existence of fungal growth or determining the effect of fungal growth is required. b. Test item configuration. The test item configuration is an important factor. Even though equipment is to be protected by a container, the container could leak and entrap moisture.

As a minimum, the tester should consider the following testing configurations: (1) In usual shipping/storege container or traneit case. (2) Under realistic storage and use conditions. (3) With restraints (such as with openings that are normally covered, or commercial equipment not designed for military use). c. Additional guidelines. Review the equipment specifications and requirements documents. APP1y any additional guidelines as necessary. I.5 SPECIAL CONSIDE8AZIQNS 1.5.1 Failure analvsi~ a. on must b.eanalyzed.to determine if the growth is . I tne test Item ma~erlals~sj or on contsmlnancs. Any fungi on the test item ... . b.

or Any fmgal growth on the test item material(s) (whether from the inoculum ( other sources) must be evaluated by qualifiei personnel for: (1) The extent of grO~h on the comPOnent(S) suPmrting same. Table 508.2-1 can be used as a guide for this evaluation. (2) The immediate effect that the growth has on the physical characteristics of the test item. (3) The long range effect that the growth could have on the test item. (4) The specific material(s) (nutrient) supporting the growth. c. Fungal growth must not be disturbed’during the operational checkout. d. Human factors effeets must be evaluated. 1.5.2 Test interruDtioq. This policy is designed to provide a standard methodolom’ for selectim?

a course of action in the event of an unscheduled interrupt~~n in a test. ‘Any deviation from this policy shall be explained in the test report. Every caae of an interrupted test shall be examined individual y using the logical decision process provided in this document. The fungus test, unlike other’environmental tests, involves living organism.i. If I the test is interrupted, the fact that live organisms are involved must be considered. ( NETHOD 508.2 508.2-4 I