WebAll ratings are based on the ASTM E-84 test method. ... flame spread performance to an index of 25 or less. Check with the manufacturer for flame spread index. A smoke-developed index was also measured for some of the wood products listed in Table 1 and Table 2. This index also has a value of 100 for red oak.

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WebSmoke-developed index. Smoke-developed index (abbreviated SDI) is a measure of the concentration of smoke a material emits as it burns. [1] Like the Flame Spread Index, it is based on an arbitrary scale in which asbestos-cement board has a value of 0, and red oak wood has 100. The SDI is measured using a horizontal test specimen, according to ... WebFlame spread indices for tested materials can range from 0 to over 1000. At various times throughout the history of ASTM E84, changes have been made to the standard, affect- … high fence elk hunting in pa

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WebOct 19, 2016 · Circuit breakers themselves do not have a specific flame rating or fire rating. They do, however, have a temperature range for storage and operation (carrying … WebRed oak represents a Flame Spread Index of 100 and a Smoke Density Index of 100. Cement board is burned and represents a Flame Spread Index of 0 and a Smoke Density Index of 0. For all interior finishes, an FSI of less than 25 results in a Class A (Class I) classification or rating only provided that the SDI is less than 450. WebWhat is the flame spread rating for ABS pipe? Flame spread tests, such as the ASTM E-84 tunnel test, are designed to test the flame spread characteristics of flat surface materials, … how high is manchester above sea level