A flammability hazard rating and index for women's apparel

Women's garments and the fabrics therein were analysed and characterized. Garments were grouped into garment assemblies, 60 of which were burned on Minnesota Woman, a thermally-instrumented mannequin. Second and third degree burn injuries were calculated using Henriques' tissue damage factor. From 0 to 90% of the mannequin surface area equipped with sensors received second or third degree burn injury. A hazard index was developed based on degree of injury and the speed with which the injury occurred. Fabric and garment parameters found to be of importance in determining the hazard deduced from the mannequin tests were fabric weight, fibre content, and garment type and fit. A hazard rating was developed based on these parameters. Comparison of the hazard rating and the hazard index values indicated that this must be considered to be an exploratory, first stage attempt to develop a relatively simple method for rating the flammability hazard of apparel.