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Upholstered Furniture Heat Release Rates Measured With a Furniture Calorimeter.

pdf icon Upholstered Furniture Heat Release Rates Measured With a Furniture Calorimeter. (3364 K)
Babrauskas, V.; Lawson, J. R.; Walton, W. D.; Twilley, W. H.

NBSIR 82-2604; 73 p. December 1982.
Order number: PB83-165050


burning rate; fire tests; flammability tests; furniture; plastics; heat release rate; textiles; upholstered furniture; oxygen consumption


Accurate burning rate information on upholstered furniture is important for two purposes--to predict the room fire development history for a fire involving the furniture, and to relatively, but adequately, rank commercial products for a given application. Small-scale test result data not referenced to full-scale fires lack validity, while full-scale room fires are costly and lack generality. To enable simplified but realistic full-scale testing to be done, a new apparatus, termed a furniture calorimeter was developed. Rates of heat release are measured by using the oxygen consumption principle. Test were conducted in the furniture calorimeter on thirteen different specimes of upholstered furniture, representing typical, but carefully controlled, construction. The results showed significant heat release differences between thermoplastic and cellulosic fabrics, between frame types and between padding materials. For polyurthane form padding, however, performance was unrelated to results of Bunsen burner type tests on the foam. Thee data developed (1) can be used directly in the calcul tion of room fire growth; (2) will form some of the reference data for development of apropriate bench-scale test procedures; and (3) can be used in some cases to estimate burning rates of similar but not identical furniture.