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We present results which verify the design parameters and suggest performance capabilities/limitations of the Mars Gravity Biosatellite's proposed atmospherics control subassembly. Using a combination of benchtop prototype testing and analytic techniques, we derive control requirements for ammonia. Further, we demonstrate the dehumidification performance of our proposed partial gravity condensing heat exchanger. Ammonia production is of particular concern in rodent habitats. The contaminant is released following chemical degradation of liquid waste products. The rate of production is linked to humidity levels and to the design of habitat modules in terms of bedding substrate, air flow rates, choice of structural materials, and other complex factors. Ammonia buildup can rapidly lead to rodent health concerns and can negatively impact scientific return.

A program has been initiated to develop a single set of man/system integration standards, requirements, and guidelines to design hardware and systems with which the space missions crew will interact. This paper describes the background, key issues, and methodology to be used in developing these standards. Included in the methodology is data collection and requirements analysis as well as technical monitoring and review, which includes a government/industry technical advisory group. This paper also briefly describes work performed on the Space Station Human Productivity study.