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R302.9.4 Alternative Test Method

Los Angeles Residential Code > 3 Building Planning > R302 Fire-Resistant Construction > R302.9 Flame Spread Index and Smoke-Developed Index for Wall and Ceiling Finishes > R302.9.4 Alternative Test Method
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As an alternative to having a flame spread index of not greater than 200 and a smoke-developed index of not greater than 450 where tested in accordance with ASTM E84 or UL 723, wall and ceiling finishes shall be permitted to be tested in accordance with NFPA 286. Materials tested in accordance with NFPA 286 shall meet the following criteria:

The interior finish shall comply with the following:

  1. During the 40 kW exposure, flames shall not spread to the ceiling.
  2. The flame shall not spread to the outer extremity of the sample on any wall or ceiling.
  3. Flashover, as defined in NFPA 286, shall not occur.
  4. The peak heat release rate throughout the test shall not exceed 800 kW.
  5. The total smoke released throughout the test shall not exceed 1,000 m2.

Related Code Sections


R302.9.4 Building Planning, Alternative Test Method
As an alternative to having a flame spread index of not greater than 200 and a smoke-developed index of not greater than 450 where tested ...
Los Angeles Residential Code > 3 Building Planning > R302 Fire-Resistant Construction > R302.9 Flame Spread Index and Smoke-Developed Index for Wall and Ceiling Finishes > R302.9.4 Alternative Test Method
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The enforcing agency is permitted to modify the provisions of this chapter for site-specific conditions in accordance with Section 1.11.2.4. When ...
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