BS476-24：建筑材料和构件的防火测试.第24部分:通风管道耐火性的测试方法
BS 476-24：Fire Tests on Building Materials and Structures Part 24: Method for Determination of the Fire Resistance of Ventilation Ducts
Abstract 摘要
Fire tests, Fire resistance, Construction systems parts, Ventilation ductwork, Ventilation equipment, Ducts (building services), Fire barriers, Fire spread prevention, Test equipment, Testing conditions, Test pressure, Test duration, Test specimens, Dimensions, Specimen preparation, Performance
