Methodology for Fire Hazard Analysis of Multilayer Seat Constructions1

Abstract

The methodology developed at McDonnell Douglas to evaluate fire hazards of multilayer seat constructions is presented. Reported test results include data from the NASA Seat Improvement Program and a similar program undertaken for the San Francisco Bay Area Rapid Transit District (BART). The seat constructions include those incorporating wool and wool blend decorative fabrics. Tests described include those conducted in a modified Ohio State University calorimeter with capability for animal toxicity testing and measurement of heat, smoke, toxic gas release, and mass burning rates. Also described is full-scale testing in the McDonnell Douglas Cabin Fire Simulator [3.66 by 12.19m (12 by 40 feet long)] with capability for gas analysis, live animal testing, and cabin ventilation simulation. Comparative results of composite constructions tested by these methods are reported.