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Hydrogen Cyanide and Smoke Particle Characteristics during Combustion of Polyurethane Foams and Other Nitrogen-Containing Materials. Development of a Test Parameter.

PB91230284

Publication Date	1991
Personal Author	De Rosa, M. I.; Litton, C. D.
Page Count	22
Abstract	The U.S. Bureau of Mines performed experiments to determine the hydrogen cyanide (HCN) concentrations and smoke particle characteristics during the combustion of flexible polyurethane foams and other nitrogen-containing materials for the development of a test parameter. The experiments were conducted in an approximately 20-L furnace at set furnace temperatures 250 and 1,000C for a 14-min duration, with an airflow through the furnace of 10 L/min. The variables studied as a function of time were the gaseous and aerosol HCN concentrations, the smoke particle average diameter d(sub g) and concentration n(sub o), and the product of the smoke particle diameter and concentration d(sub g)n(sub o). Carbon monoxide, carbon dioxide, and oxygen concentrations, sample mass weight loss, and furnace temperatures were also studied; analyses of nitrogen and cyanate content of the material were carried out. Results show that d(sub g)n(sub o) correlates directly with the HCN concentrations, which depend on the nitrogen and cyanate contents of the material.
Keywords	Hydrogen cyanide Mine fires Indoor air pollution Air pollution sampling Aerosols Combustion products Fire tests Plastics Nitrogen organic compounds Thermal degradation Materials tests Smoke Polyurethane resins Experimental design Textiles Particle size Toxicity
Source Agency	Bureau of Mines
NTIS Subject Category	81A - Combustion & Ignition 48A - Mineral Industries 68A - Air Pollution & Control
Corporate Authors	Bureau of Mines, Pittsburgh, PA. Pittsburgh Research Center.
Supplemental Notes	Library of Congress catalog card no. 90-22809.
Document Type	Technical Report
Title Note	Rept. of investigations/1991.
NTIS Issue Number	199122

Hydrogen Cyanide and Smoke Particle Characteristics during Combustion of Polyurethane Foams and Other Nitrogen-Containing Materials. Development of a Test Parameter.

Hydrogen Cyanide and Smoke Particle Characteristics during Combustion of Polyurethane Foams and Other Nitrogen-Containing Materials. Development of a Test Parameter.
PB91230284

Publication Date	1991
Personal Author	De Rosa, M. I.; Litton, C. D.
Page Count	22
Abstract	The U.S. Bureau of Mines performed experiments to determine the hydrogen cyanide (HCN) concentrations and smoke particle characteristics during the combustion of flexible polyurethane foams and other nitrogen-containing materials for the development of a test parameter. The experiments were conducted in an approximately 20-L furnace at set furnace temperatures 250 and 1,000C for a 14-min duration, with an airflow through the furnace of 10 L/min. The variables studied as a function of time were the gaseous and aerosol HCN concentrations, the smoke particle average diameter d(sub g) and concentration n(sub o), and the product of the smoke particle diameter and concentration d(sub g)n(sub o). Carbon monoxide, carbon dioxide, and oxygen concentrations, sample mass weight loss, and furnace temperatures were also studied; analyses of nitrogen and cyanate content of the material were carried out. Results show that d(sub g)n(sub o) correlates directly with the HCN concentrations, which depend on the nitrogen and cyanate contents of the material.
Keywords	Hydrogen cyanide Mine fires Indoor air pollution Air pollution sampling Aerosols Combustion products Fire tests Plastics Nitrogen organic compounds Thermal degradation Materials tests Smoke Polyurethane resins Experimental design Textiles Particle size Toxicity
Source Agency	Bureau of Mines
NTIS Subject Category	81A - Combustion & Ignition 48A - Mineral Industries 68A - Air Pollution & Control
Corporate Authors	Bureau of Mines, Pittsburgh, PA. Pittsburgh Research Center.
Supplemental Notes	Library of Congress catalog card no. 90-22809.
Document Type	Technical Report
Title Note	Rept. of investigations/1991.
NTIS Issue Number	199122