A facility has been designed and built to perform the first integrated testing of Space Station Freedom Extravehicular Mobility Unit Portable Life Support System. The test articles are a non-venting thermal sink, a metal oxide CO2 absorber, a quaternary amine CO2 absorber, and a fast response CO2 sensor. The water loop and vent loop of the EMU are simulated using facility fluid movers. Minimum volume and thermal mass were also drivers. Difficulties in system design and the resolution of each are discussed.
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