The flammability of flexible polyurethane foam has been well studied to date, via smoldering and flaming ignition. Its contribution to fire loss in the United States has also been well documented, as the flammability of this material will contribute to large fire events when not protected from ignition and heat sources. Despite this known fire risk, fire protection approaches for polyurethane foam are being questioned in regards to fire protection performance, as well as proven and hypothesized concerns over health impacts before and after fire events. The flammability of flexible polyurethane foam in furniture and bedding is a clear and present danger that must be addressed, and this article discusses the current available technologies for fire protection, with pros and cons of these approaches. Known physical and chemical behavior of these foams in fires is discussed, as well as how this behavior contributes to large fire events. Finally, issues that still need further research and information to definitively address the polyurethane foam flammability in the United States is discussed.

中文翻译：

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再谈美国家具和床上用品中柔性聚氨酯泡沫的可燃性

迄今为止，已经通过阴燃和明火点火对软质聚氨酯泡沫的可燃性进行了充分的研究。在美国，它对失火的贡献也有据可查，因为如果不保护其免受点燃和热源的侵扰，该材料的可燃性将导致大火事件。尽管存在这种已知的火灾风险，但聚氨酯泡沫的防火方法在防火性能以及火灾发生前后对健康的影响等方面都受到质疑。家具和床上用品中软质聚氨酯泡沫的可燃性是一个明显的当前危险，必须加以解决，本文将探讨这些方法的利弊，探讨目前可用的防火技术。讨论了这些泡沫在火灾中的已知物理和化学行为，以及这种行为如何导致大型火灾。最后，讨论了仍需要进一步研究和信息以最终解决美国聚氨酯泡沫可燃性的问题。