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2604.2 Foam Plastic Interior Trim
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The minimum density of the interior trim shall be 20 pcf (320 kg/m3).
The maximum thickness of the interior trim shall be 1/2-inch (12.7 mm) and the maximum width shall be 8 inches (204 mm).
The flame spread index shall not exceed 75 where tested in accordance with ASTM E 84 or UL 723. The smoke-developed index shall not be limited.
Exception: When the interior trim material has been tested as an interior finish in accordance with NFPA 286 and complies with the acceptance criteria in Section 803.1.2.1 of this code, it shall not be required to be tested for flame spread index in accordance with ASTM E 84 or UL 723.
Exception: When the interior trim material has been tested as an interior finish in accordance with NFPA 286 and complies with the acceptance criteria in Section 803.1.2.1 of this code, it shall not be required to be tested for flame spread index in accordance with ASTM E 84 or UL 723.
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