NFPA 255-2006 Standard Method of Test of Surface Burning Characteristics of Building Materials

National Fire Protection Association (NFPA). 2006 Edition. It was issued by the Standards Council on July 29, 2005, with an effective date of August 18, 2005, and supersedes all previous editions. This edition of NFPA 255 was approved as an American National Standard on August 18, 2005. 37 р. This standard describes a method of testing the comparative surface burning characteristics of building materials with regard to flame spread and smoke developed.
This test method is applicable to any type of building material that by its own structural quality or the manner in which it is applied is capable of supporting itself in position, or is supported in the test furnace, in the thickness recommended for use.