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Guidelines for Developing Spacecraft Maximum Allowable Concentrations for Space Station Contaminants (1992) / Chapter Skim
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'INTRODUCTION'
Pages 9-12

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From page 9...
... The 7-, 30-, and 180-day SMACs are guidance levels intended to avoid adverse health effects, either immediate or delayed, and to avoid degradation in performance of crew after continuous exposure for as long as 180 days in the space station; these values will be used for normal operations of the space station. NASA expects that each crew for the space station will stay aloft for up to 180 days.
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From page 10...
... Other materials to be brought to the space station include oxygen to replace gradual loss through leakage, raw materials for materials processing, and propellants for engines needed to correct orbital decay; miscellaneous supplies also will be brought up every few months. The crew of the space station will live and operate primarily in four (or more)
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From page 11...
... In response to NASA's request, this report was prepared to set forth guidelines for establishing SMACs for up to 180 days for potential atmospheric contaminants in the closed environments of the space station. Where appropriate knowledge exists, these guidelines take into account the pronounced physiological changes and stresses that occur in microgravity environments during spacef light and the behavior of the contaminants under these conditions.
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From page 12...
... • Modifying the current methods for developing appropriate exposure criteria by taking into account the pronounced physiological changes and stresses that occur in the microgravity of space.
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Key Terms

  • manned space
  • space shuttle
  • permanently manned
  • spacecraft maximum
  • maximum allowable

  • allowable concentrations
  • atmospheric contaminants
  • physiological changes
  • tional space
  • station freedom

  • allowable exposure
  • station include
  • closed environments
  • manned phase
  • airborne substances

  • establishing smacs
  • complex environment
  • microgravity environments
  • continuous exposure
  • appropriate trace

  • nautical miles
  • forth guidelines
  • spacef light
  • guidance levels
  • correct orbital

  • raw materials
  • plans call
  • initial plans
  • crew performance
  • appropriate knowledge


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