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Concentration-time data in toxicity tests and resulting relationshipsPeriodic analyses for carbon monoxide and methane in the animal exposure chamber during pyrolysis of polyethylene at 800 C without forced air flow showed that the concentrations of these compounds increased with exposure time. These observations, and similar observations for polyurethane flexible foam, permitted the calculation of carbon monoxide toxicity in terms of a DP (Death Product Concentration) value, in addition to flammability in terms of HC (Hydro Carbon) value. Observed DP values exceeding the critical DP(CO) value of 47,200 ppm-min for carbon monoxide may indicate that lethal exposures were reached earlier but not immediately manifested because of the time delay involved in physiological processes. On the basis of this DP(CO) value, carbon monoxide could have been the sole toxicant in the case of polyethylene, polypropylene, polyoxymethylene, polystyrene, polycarbonate, ethylene propylene diene rubber, and wood.
Document ID
19790052593
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hilado, C. J.
(San Francisco Univ. CA, United States)
Brauer, D. P.
(San Francisco, University San Francisco, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
May 1, 1979
Publication Information
Publication: Journal of Combustion Toxicology
Volume: 6
Subject Category
Inorganic And Physical Chemistry
Accession Number
79A36606
Funding Number(s)
CONTRACT_GRANT: NSG-2039
Distribution Limits
Public
Copyright
Other

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