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The regulation says, "the foam inside upholstered furniture be able to withstand exposure to a small flame, like a candle or cigarette lighter, for 12 seconds without igniting." so if a fire has already started and it is bigger than a small flame then this regulation isn't meant to help with that. In fact if you look around you can find http://laurasrules.org/2012/04/15/sofa-saga-part-3-interview... people talking about studies that show that in a actual fire these chemicals only slow down the burn rate by a couple seconds.

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