A Combustion Products Analyzer for contingency use during thermodegradation events on spacecraftThis paper will describe the Combustion Products Analyzer (CPA), which is being developed under the direction of the Toxicology Laboratory at Johnson Space Center to provide necessary data on air quality in the Shuttle following a thermodegradation incident. Using separate electrochemical sensors, the CPA monitors four gases (hydrogen fluoride/carbonyl fluoride, hydrogen chloride, hydrogen cyanide, and carbon monoxide), which were selected as the most hazardous compounds likely to be released during thermodegradation of synthetic materials. Electrochemical sensors have been available for several years; the CPA sensors, which are unique because of their small size and zero-gravity compatibility, will be described in detail.
Document ID
19920039175
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Limero, Thomas (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
James, John T. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Beck, Steven (NASA Johnson Space Center Houston, TX, United States)
Cromer, Raymond (Exidyne Instrumentation Technologies Exton, PA, United States)