Downloaded from https://www.everyspec.com MIL-STD-810D 19 July .1983 e II-3;. ~. The following test procedures alone, or in combination, provide,the.basis for collecting the necessary infOrmatiOn concerning the”test item in a high-temperature environment. Proceed to the first teat procedure as determined by the test plan. /.;. 11-3.:1~ ‘ProcedureI - Storm ... .,”. Step.1. Install the required temperature sensors on, in, and around the test item and chamber,.. ,,...,::, ... Step 2. Place the test item in its storage configuration. . Step 3. Adjust the chamber environment to the initial test conditions as specified in the test plan. ,.. Step 4.
Expose the test.item to the temperature (and humidity,”if applicable) conditions of the storage cycle for at least seven cycles (a total of 168 hours) or as epecified in the test plan. If applicable, monitor the temperature of the critical item components and document. Step 5. At the completion of the last cycle, “adjustthe chamber air temperature to controlled ambient conditions and maintain until temperature stabilization of the test item has been achieved. “-Step 6. Conduct a complete vieual and operational checkout of the test item and record the results. II-3.2 Procedure II - OBerat&n Step 1. Place the test,item in the’chamber in ita“operational configurateion. Step 2.
.Fromthe test plan, determine the operational temperature extreme(s), whether constant or cyclic, and whether the temperature(e) was: a.. Specified by the requirements documents: Proceed to Stap 7 for constant temperature exposure or Step 12 for cycling exposure. b. Derived from field measurements: Proceed temperature exposure or Step 12 for cycling exposure. to Step 7 for constant c. Cyclic and derived from paragraph I-3.2: Proceed to Step 12. Constant and not provided or determined elsewhere: Perform Steps 3 throughd~. . Step .3.
With the test item placed in the chamber in ite operational configuration, inStall the temperature aensora necessary to measure the temperature throughout the test item, insuring that the critical components or areas .ofconcern are included. /. Step 4. Adjust the chamber air conditions to the initial temperature (and humidity,,if applicable) levels of the prescribed operational cycle. 0 19 July 1983 501.2-15 METHOD 501.2 ~