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Codes and standards published by NFPA are displayed as read-only under license from NFPA solely for use within this system. NFPA material may not be downloaded, printed, reproduced, or transferred.

NFPA 268 provides a test procedure to describe a method for determining the propensity of ignition of exterior wall assemblies from exposure to 12.5 kW /m2 radiant heat in the presence of a pilot ignition source.

The 2001 edition has been revised for easier referencing and improved usability. Some of the definitions were revised for clarification and the references for specific time periods for sustained flaming are now included in the main body of the text.
 

Document History

  1. NFPA (Fire) 268


    Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source, 2022 Edition

    • Most Recent
  2. NFPA (Fire) 268


    Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source, 2017 Edition

    • Historical Version
  3. NFPA (Fire) 268


    Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source, 2012 Edition

    • Historical Version
  4. NFPA (Fire) 268


    Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source, 2007 Edition

    • Historical Version
  5. NFPA (Fire) 268

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    Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source, 2001 edition

    • Historical Version
  6. NFPA (Fire) 268


    Standard Test Method for Determining Ignitability of Exterior Wall Assemblies Using a Radiant Heat Energy Source, 1996 Edition

    • Historical Version