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803.1.3.1 Acceptance criteria for NFPA 265.
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 extremities of the samples on the 8-foot by 12-foot (2438.4 mm by 3657.6 mm) walls.
3. Flashover, as defined in NFPA 265, shall not occur.
4. The total smoke released throughout the test shall not exceed 10,764 square feet (1000 m
2
).
803.1.4 Flame-spread and smoke-developed tests for textile wall or ceiling coverings.
Specimens shall be tested and indexed per ASTM E 84 or UL 723, and classified for flame spread per Section 803.1.4.1 of this code.
803.1.4.1 Acceptance criteria for textile and expanded vinyl wall or ceiling coverings tested to ASTM E 84 or UL 723.
Textile wall and ceiling coverings and expanded vinyl wall and ceiling coverings shall have a Class A flame spread index per Section 803.1.1 of this code; shall meet the smoke developed index requirements of Section 803.1.1; and shall be protected by an automatic sprinkler system installed in accordance with Section 903.3.1.1 or 903.3.1.2 of this code. Test specimen preparation and mounting shall be in accordance with ASTM E 2404.
803.2 Thickness exemption.
Materials having a thickness less than 0.036 inch (0.9 mm) applied directly to the surface of walls or ceilings shall not be required to be tested.
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