BS476-20:1987建筑材料耐火测试
BS476-20: Fire tests on building materials and structures-Part 20: Method for determination of the fire resistance of elements of construction (general principles)
BS476-20: 对建筑材料和结构的着火试验—第20部分：建筑材料耐火测试（一般原则）
BS476-20测试方法，样品暴露下高温高压条件下，测试样品在规定时间内的承重量，完整性、隔热性。
BS476-20:1987主要关注如下方面:
1．耐火极限
2．隔热性和完整性对应承载能力
3．隔热性
4．完整性
BS476-20:1987可申请耐火测试时间:
30分钟
60分钟
90分钟
120分钟
150分钟
180分钟
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BS476 相关参考标准
BS476: Fire tests on building materials and structures.
BS476: 建筑材料及构件防火测试
BS476-3:2004 external fire exposure roof test
BS476-3:2004 室外屋顶的燃烧测试
BS476-4:1970 Non-combustibility test for materials
BS476-4:1970 材料的不燃烧性测试
BS476-5:1979 Method of test of ignitability
BS476-5:1979 可燃性燃烧测试
BS476-6:1989 Method of test for propagation for materials
BS476-6:1989 制品火势蔓延的试验方法
BS476-7:1997 Surface spread of flame test for material
BS476-7:1997制品表面火势蔓延的试验和分级方法
BS476-11:1982 Method for assessing the heat emission from building materials
BS476-11:1982建筑材料热辐射性能测试方法
BS476-12:1991 Ignitability of products by direct flame impingement
BS476-12:1991产品直接火焰冲击的可燃性测试方法
BS476-15:1992 Method for measuring heat release of products-cone calorimeter
BS476-15:1992产品放热性测试-锥形量热仪
BS476-20:1987 Method for determination of the fire resistance of elements of construction (general principles)
BS476-20:1987建筑构件耐火的测定方法(一般原理)
BS476-21:1987 Methods for determination of the fire resistance of loadbearing elements of construction
BS476-21:1987 承重构件耐火的测定方法
BS476-22:1987 Methods for determination of the fire resistance of non-loadbearing elements of construction
BS476-22:1987非承重建筑构件耐火性能测试方法
更多BS476-20耐火测试，可以联系中国防火网
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