Fire Resistance Testing Requirements for Building Elements

Table 4.1 Specific provisions of test for fire resistance of elements of structure and other components of a building (cont'd) Part of building | Minimum provisions when tested to the relevant part of BS 476 (minutes) | Minimum provisions when tested to the relevant European standard (minutes) | Method of exposure 15 Cavity barrier | Not applicable | 30 15 EI 30 | Each side separately 16 Ceiling shown in Diagram 4.6 or 4.7 | Not applicable | 30 30 EI 30 | From underside 17 Fire-resisting duct referred to in paragraph 4.42(e) | Not applicable | 30 No provision E 30 | From outside 18 Casing around a drainage system as shown in Diagram 4.11 | Not applicable | 30 No provision E 30 | From outside 19 Flue walls described in paragraph 4.45 | Not applicable | See Table 4.2 | See Table 4.2 | EI see Table 4.2 | From outside 20 Fire doors | See Table 4.5 | See Table 4.5