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Introduction
Pages 1-4

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From page 1...
... It is defined as a ceiling limit designed to avoid adverse health effects, either immediate or delayed, and to avoid degradation in crew performance that might endanger the objectives of a particular mission. Because data on continuous exposures are rarely available, uncertainty factors might be used, depending on the judgment of the Committee.
From page 2...
... 2 mg/m3 90 d 0.01 mg/m3 0.01 mg /m3 Methane 24 h 5, 000 5, 000 90 d 5, 000 5, 000 Ozone 60 min 1 1 24 h 0.1 0.1 90 d 0.02 0.02 Sulfuric acid 10 min 5 mg/m3 mg/m3 30 min 2 mg /m3 2 mg /m3 mg /m3 60 min appm, unless otherwise stated. bTentat ive recommendat ion.
From page 3...
... H George Mandel, The George Washington University, Washington, O.C.; Dr.
From page 4...
... Hoel, National Institute of Environmental Health Sciences, Research Triangle Park, North Carolina Michael Lieberman, Washington University School of Medicine, St. Louis, Missouri Richard Merrill, University of Virginia Law School, Charlottesville, Virginia Vaun A


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