American Society for Testing and Materials (ASTM). Current edition approved February 1, 2004. Published March 2004. 4 p. This is a fire-test-response standard. This test method covers a small-scale laboratory screening procedure for comparing relative extent and time of burning and loss of mass of rigid thermoset cellular plastics. This test method is to be used solely to establish relative burning characteristics and shall not be considered or used as a fire-hazard classification