NFPA 255: Standard Method of Test of Surface Burning Characteristics of Building Materials is referenced by the NFPA 101®: Life Safety Code® and building codes as the test procedure to be used for establishing the values associated with a material's flame spread and smoke density indexes, when used as interior wall and ceiling finishes.
This test procedure is used to determine the comparative burning characteristics of the material under test by evaluating the flame spread over its surface to two known items. The smoke density is also recorded during this test procedure.
Technical changes in the 2006 edition address:
Organizational and editorial changes make NFPA 255 easier to apply. This edition is also in compliance with NFPA®''s Manual of Style. (Softbound, 19 pp., 2006)
NFPA 255 Standard Method of Test of Surface Burning Characteristics of Building Materials 2006 Edition
Chapter 1 Administration
Chapter 2 Referenced Publications
Chapter 3 Definitions
Chapter 4 Test Equipment and Specimens
Chapter 5 Conduct of Tests
Annex A Explanatory Material
Annex B Guide to Mounting Methods
Annex C Derivation of Flame Spread Area Formulas in Section 5.3
Annex D Commentary
Annex E Informational References