BS476-21：建筑材料和构件的防火测试.第21部分:承重构件耐火的测试方法
BS 476-21：Fire Tests on Building Materials and Structures Part 21: Methods for Determination of the Fire Resistance of Load bearing Elements of Construction
Abstract 摘要
Fire tests, Fire resistance, Heating tests, Construction systems parts, Beams, Columns, Structural members, Floors, Flat roofs, Roofs, Walls, Test specimens, Dimensions, Testing conditions, Loadbearing walls
