NASA NTRS · 19790000211
Monitoring harmful gases
Abstract
Instruments are developed for monitoring presence of hydrazine and nitrogen dioxide in air. Nitrogen dioxide and hydrazine are highly toxic and explosive substances used in propellants for rocket engines. Instruments discussed are inexpensive and most useful for detecting above substances in concentrations as low as few parts per million.
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Helms, W. R., Stetter, J. R.. 1979-12-01. Monitoring harmful gases. https://ntrs.nasa.gov/citations/19790000211
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