Is EPS safe during combustion?
Yes, there are currently two recognized testsone developed at the University of Pittsburgh and the other at the National Bureau of Standards (NBS)that yield consistent results and are reproducible from one laboratory to another. Both tests are based on the lethal effects of combustion gases on animals (rats or mice). A literature review of the combustion toxicity of expanded polystyrene by the Southwest Research Institute (SwRI) for the Society of the Plastics Industry, suggests that all the studies performed to date indicate that in laboratory tests the combustion products from expanded polystyrene are no more toxic than those from wood.