Accession Number : ADA133171

Title :   Radiative Ignition and Opposed Flow Flame Spread Measurements on Materials.

Descriptive Note : Final rept. Mar 81-Sep 82,

Corporate Author : NATIONAL BUREAU OF STANDARDS WASHINGTON DC

Personal Author(s) : Harkleroad,Margaret ; Quintiere,James ; Walton,William

PDF Url : ADA133171

Report Date : Aug 1983

Pagination or Media Count : 91

Abstract : The purpose of this study is to develop a fire-testing method that relates material ignitability and flame spread in the creeping mode. The analytical approach involves parameters and solutions arising from transient heat condition to a semi-infinite solid. Experimental data are generated on an apparatus employing a radiant panel to provide a varying heat flux to test specimens. Flame-spread rates and ignition events are measured against incident radiation and exposure time. The flame-spread data for given materials are correlated for varying exposure conditions by plotting the inverse square root of the flame-spread velocity against a product of the heat flux and a time function. The test and analysis results are shown for six diverse materials representative of aircraft (interior panels, carpeting, and seat cushions) and buildings (plywood, polymethyl methacrylate, and rigid foam). (Author)

Descriptors :   *Flame propagation, *Ignition, *Flammability, *Fire safety, *Materials, Aircraft equipment, Internal, Fires, Test methods, Transients, Heat transfer, Solids, Radiant heating panels, Heat flux, Burning rate, Exposure(General), Time, Velocity, Construction materials, Mathematical analysis, Graphs, Tables(Data)

Subject Categories : Miscellaneous Materials
      Safety Engineering
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE