WebThe flame spread test in horizontal orientation is relevant for applications where the textile material is used in flooring, ceilings or any other less hazardous horizontal applications. … WebThe classes are 0-25 for Class A or I, 26-75 for Class B or II, and 76-200 for Class C or III. For regulatory purposes, the requirement for smoke developed index is usually 450 or less. This list of ASTM F 84 flame spread indexes and smoke developed indexes for untreated wood products was prepared from the literature.
FRP Specifications - VARI-TECH
WebAug 15, 2016 · Flame spread ratings (FSR’s) are expressed as a number on a continuous scale where inorganic reinforced cement board is 0 and red oak is 100. The scale is divided into classes. The most commonly used flame-spread classifications are: Class I or A, with a 0-25 FSR Class II or B with a 26-75 FSR Class III or C with a 76-200 FSR WebCLASSIFICATION FLAME SPREAD INDEX SMOKE DEVELOPED Class A 0 – 25 < 450 Class B 26 – 75 < 450 Class C 76 – 200 < 450 Uniform Building Code (UBC) (issued by ICBO) Section 4204 and Basic Building Code (issued by BOCA) Section 922.5.3 CLASSIFICATION FLAME SPREAD INDEX SMOKE DEVELOPED Class I 0 – 25 < 450 … pool store and more
Asphalt Shingle & Other Roofing Materials Fire …
WebNov 3, 2024 · Lower classes, Class B (26-75) and Class C (76-200), indicate that flames spread more quickly and covered a greater distance over the material than Class A flame spread-rated materials. Now that you understand how materials are measured for flame spread, it’s time to dive into your fire-rated decking options and evaluate each for its … WebCAN/ULC-S102 achieved indexes for Flame Spread of 25 and Smoke Developed of 45. Durability class European Standard EN 350 guides the methods used for determining and classifying the durability of wood and bamboo regarding biological, wood-destroying fungi. Web11 rows · The scale is divided into three classes. The most commonly used flame-spread classifications are: Class I or A, with a 0-25 FSR; Class II or B with a 26-75 FSR; and … pool store camberwell