Detailed study of contaminant production in a space cabin simulator at 258 mm. mercury.

Abstract : Additional information has been accumulated concerning the contaminants associated with habitation by man of a closed confined space. An experiment designed to determine man's contribution to trace contaminants was conducted. The experiment was divided into three phases: an unmanned period, a manned period, and a manned period coupled with an activated carbon scrubber. Direct analyses of the sealed environment were not adequate for this comprehensive survey; however, cryogenic fractionation and concentration provided samples with sufficient concentration of contaminants for analysis by means of gas chromatography, infrared spectroscopy, and mass spectroscopy. Of the 142 compounds identified and quantified during the experiment, only 45 were found during the manned phases.