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3M Commercial Graphics <br /> 3M Center <br /> St Paul,MAN 55144-1000 <br /> General 1400-374-6772 <br /> Product Flammability Information <br /> After a material is subjected to the ASTM E-84 test,it is given a rating based on its performance <br /> during the test. Materials are classified into one of three groups based on their tested flame <br /> spread characteristics. These groups and their flame spread indexes are listed below: <br /> Class Flame Spread Index <br /> I (A)0-25 <br /> II (B)26-75 <br /> III (C)76-200 <br /> Class I or(A)rating means it is the most fire resistant category that NFPA recognizes as <br /> necessary for interior wall and ceiling finish materials. It will be acceptable in any building in <br /> any locality that models its building code after NFPA 10(for wall or ceiling materials. <br /> NFPA 101 is a code that provides minimum requirements for the design,operation and <br /> maintenance of building and structures for safety to life from fire and similar emergencies. The <br /> requirements differ depending on the type of building. <br /> Many building codes require a smoke developed rating of 450 or less for building materials. The <br />