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analytical methods for toxic gases from thermal degradation of polymersToxic gases evolved from the thermal oxidative degradation of synthetic or natural polymers in small laboratory chambers or in large scale fire tests are measured by several different analytical methods. Gas detector tubes are used for fast on-site detection of suspect toxic gases. The infrared spectroscopic method is an excellent qualitative and quantitative analysis for some toxic gases. Permanent gases such as carbon monoxide, carbon dioxide, methane and ethylene, can be quantitatively determined by gas chromatography. Highly toxic and corrosive gases such as nitrogen oxides, hydrogen cyanide, hydrogen fluoride, hydrogen chloride and sulfur dioxide should be passed into a scrubbing solution for subsequent analysis by either specific ion electrodes or spectrophotometric methods. Low-concentration toxic organic vapors can be concentrated in a cold trap and then analyzed by gas chromatography and mass spectrometry. The limitations of different methods are discussed.
Document ID
19770067776
Document Type
Reprint (Version printed in journal)
Authors
Hsu, M.-T. S.
(San Francisco, University San Francisco, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
August 1, 1977
Publication Information
Publication: Journal of Combustion Toxicology
Volume: 4
Subject Category
CHEMISTRY AND MATERIALS (GENERAL)
Funding Number(s)
CONTRACT_GRANT: NSG-2039
Distribution Limits
Public
Copyright
Other