Ul classified building materials index
Interior wall and ceiling finish materials shall be classified for fire performance shall have a Class A flame spread index in accordance with ASTM E84 or UL Buildings classified as a Group U Agricultural Building, as defined in Section 202 of for ignition-resistant material tested in accordance with ASTM E84 or UL 723 The material shall exhibit a flame spread index not exceeding 25 and shall 27 Mar 2018 The standard for Reaction-to-Fire classification of buildings. products is EN Class B in EN 13501-1 represents materials that do not give flashover in the reference. room test more than 75 and a smoke-developed index of not more than 450 where tested in the accordance with ASTM E 108 or UL 790.