f Downloaded from https://www.everyspec.com MIL-STD-81OD 19 July 1983 locations of expected deployment; and platform environments. The environments and combination of environments the equipment will encounter at each phase shall be determined. All potential deployment scenarios should be described. o Figure 2 shows generalized environmental life cycle profiles that may be “used as a baseline to identify the environments most likely to be associatedwith each life cycle phase. The information DreSented in the fifnme does not necessarilyy-include all ‘environmentsor combinations of materiel will be exposed. The following factors should account: I environments to which also be taken into a.
Configuration of the hardware. b b. Environment that“is encountered. c. Platform with which the hardware interfaces. d. Interfaces with other equipment. e. Absolute and relative duration of exposure phase. f. Number of times phase will occur; intermittence of phase, g. Probability of occurrence of environmental conditions. h. Geographical location.. i. Any other information which will help identify any environmental conditions which may act upon the item. * I The life cycle environment profile shall be documented according to DID DI-R-7124. Q.2.2.3 and Test Plm. This plan shall define the specific environmental design and test requirements and include an environ- mental test plan.
Data obtained under provisions of 4.2.2.2 above shall be utilized, along with the individual environmental test methods listed in section 5 of this document. Consideration”should be given to the following: 1 a. Probabilityy of environmental occurrencei‘alone or in combination. I b. Expected effects and failure modes. c. Effect on hardware performance.and mission success. d. Likelihood of problemts disclosure by the test ‘methods, -.. e. Occurr&ce of similar environmental stress in ore than one life profile phaae. f. Experience gained from other equipment similarly deployed. This plan shall be documented under DID DI-R-7125. 6