Spacecraft Maximum Allowable Concentrations for Selected Airborne Contaminants: Volume 2

The National Aeronautics and Space Administration (NASA) has developed spacecraft maximum allowable concentrations (SMACs) for contaminants that might be found in the atmosphere within spacecraft during space missions to ensure the health and well-being of astronauts traveling and working in this unique environment. In volume 1 of this series, NASA developed SMACs for 11 compounds: acetaldehyde, ammonia, carbon monoxide, formaldehyde, Freon 113, hydrogen, methane, methanol, octamethyltrisiloxane, trimethylsilanol, and vinyl chloride. Volume 2 includes SMACs for 12 more airborne contaminants: acrolein, benzene, carbon dioxide, 2-ethoxyethanol, hydrazine, indole, mercury, methylene chloride, methyl ethyl ketone, nitromethane, 2-propoanol, and toluene. In developing SMACs from the toxicological literature, NASA followed the Guidelines for Developing Spacecraft Maximum Allowable Concentrations for Space Station Contaminants published in 1992 by the National Research Council. Table of ContentsFront MatterSpacecraft Maximum Allowable Concentrations for Selected Airborne ContaminantsAppendix AAppendix B: Reports on Spacecraft Maximum Allowable Concentrations for Selected Airborne ContaminantsB1 AcroleinB2 BenzeneB3 Carbon DioxideB4 2-EtoxyethanolB5 HydrazineB6 IndoleB7 MercuryB8 Methylene ChlorideB9 Methyl Ethyl KetoneB10 NitromethaneB11 2-ProponolB12 Toluene