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  • Articles  (3)
  • carbon monoxide  (3)
  • Wiley-Blackwell  (3)
  • 1985-1989  (3)
  • 1950-1954
  • Architecture, Civil Engineering, Surveying  (3)
  • Geosciences
  • 1
    Electronic Resource
    Electronic Resource
    A review of the literature on the gaseous products and toxicity generated from the pyrolysis and combustion of rigid polyurethane foamsThis paper is a contribution of the National Bureau of Standards and is not subject to copyright (1987)
    New York, NY [u.a.] : Wiley-Blackwell
    Fire and Materials 11 (1987), S. 1-29 
    Details
    ISSN: 0308-0501
    Keywords: carbon monoxide ; combustion products ; fire retardants ; hydrogen cyanide ; literature reviews ; polyurethane foams ; rigid foams ; thermal decomposition ; toxicity ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The literature on rigid polyurethane foam has been reviewed with an emphasis on the gaseous products generated under various thermal decomposition conditions and the toxicity of those products. This review is limited to publications in English through 1984. Carbon monoxide (CO) and hydrogen cyanide (HCN) were the predominant toxicants found among more than a hundred other gaseous products. The generation of CO and HCN was found to increase with increasing combustion products from various rigid polyurethane foams. Lethality, incapacitation, physiological and biochemical parameters were employ as biological end points. In general, the combustion products generated from rigid polyurethane foam in the flaming mode appear from to be more toxic than those produced in the non-flaming mode. The LC50 values for 30-min exposures ranged from 10 to 17 mg l-1 in the flaming mode and were greater then 34 mg l-1 in the non-flaming mode. With the exception of one case, in which a reactive type phosphorus containing fire retardant was used, the addition of fire retardants to rigid polyurethane foams does not appear to generate unusual toxic combustion products.
    Additional Material: 33 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fam.810110102
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  • 2
    Electronic Resource
    Electronic Resource
    Toxicity of the pyrolysis and combustion products of poly(vinyl chlorides): A literature assessment (1987)
    New York, NY [u.a.] : Wiley-Blackwell
    Fire and Materials 11 (1987), S. 131-142 
    Details
    ISSN: 0308-0501
    Keywords: carbon monoxide ; combustion products ; hydrochloric acid ; large-scale fire tests ; polyvinyl chloride ; pyrolysis products ; small-scale fire tests ; toxicity ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Poly(vinyl chlorides) (PVC) constitute a major class of synthetic plastics, Many surveys of the voluminous literature have been performed. This report reviews the literature published in English from 1969 through 1984 and endeavors to be more interpretive than comprehensive. PVC compounds, in general, are among the more fire resistant common organic polymers, natural or synthetic. The major products of thermal decomposition include hydrogen chloride, benzene and unsaturated hydrocarbons. In the presence of oxygen, carbon monoxide, carbon dioxide and water are included among the common combustion products. The main toxic products from PVC fires are hydrogen chloride (a sensory and pulmonary irritant) and carbon monoxide (an asphyxiant). The LC50 value calculated for a series of natural and synthetic materials thermally decomposed according to the NBS toxicity test method ranged from 0.045 to 57 mg l-1 in the flaming mode and from 0.045 to 〉 40 mg l-1 in the non-flaming mode. The LC50 results for a PVC resin decomposed under the same conditions were 17 mg l-1 in the flaming mode and 20 mg l-1 in the non-flaming mode. These results indicate that PVC decomposition products are not extremely toxic when compared with those from other common building materials. When the combustion toxicity (based on their HCI content) of PVC materials in compared with pure HCI experiments, it appears that much of the post-exposure toxicity can be explained by the HCI that is generated.
    Additional Material: 12 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fam.810110303
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  • 3
    Electronic Resource
    Electronic Resource
    Acrylonitrile-butadiene-styrene copolymers (ABS): Pyrolysis and combustion products and their toxicity - a review of the literature (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Fire and Materials 10 (1986), S. 93-105 
    Details
    ISSN: 0308-0501
    Keywords: ABS plastics ; carbon monoxide ; combustion products ; hydrogen cyanide ; literature reviews ; thermal decomposition ; toxicity ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Architecture, Civil Engineering, Surveying , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: A review of literature was undertaken to ascertain the current knowledge of the nature of the thermal decomposition products generated from ABS and the toxicity of these evolved products in toto. The literature review encompasses English language publications available through June 1984. This literature surveyed showed that the principal ABS thermooxidative degradation products of toxicologic importance are carbon monoxide and hydrogen cyanide. The experimental generation of these and other volatile products is principally dependent upon the combustion conditions and the formulation of the plastic. The toxicity of ABS thermal degradation products has been evaluated by fire methods. The LC50 (30 min exposure + 14 day post-exposure period) values for flaming combustion ranged from 15.0 mgl-1 to 28.5 mgl-1. In the non-flaming mode of combustion, the LC50 values ranged from 19.3 Mgl-1 to 64.0 mgl-1. Therefore, no apparent toxicological difference exists between the flaming mode and the non-flaming mode. The toxicity of ABS degradation products was found to be comparable with the toxicity of the thermal decomposition products of other common polymeric materials.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/fam.810100303
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