筒灯BS476 耐火测试

筒灯bs 476  耐火测试

关于耐火测试讯息

近期由于建筑材料发展的需要，耐火材料逐步在促进发展。2013年下半年全球市场的动态表明，led灯具，防火筒灯，钢结构涂料，铝蜂窝板，硅酸钙板，石膏板等等的建筑材料的市场开始逐渐引起行业的轰动，未来的市场趋势是不可小视的

测试标准

bs476-21: fire test on building materials and structures-part 21: method for determination of the fire resistance of load bearing elements of construction.

bs476-21:建筑材料和构件的防火测试-第21部分:承重材料耐火性测试

this part, together with bs 476: parts 20, 22, 23 and supersedes bs 476: part 8:1972, which is withdrawn. however, the latter will still be made available on request, since it is referred to in the building regulations and other legislative documents.

折叠测试对象

determination of the fire resistance of beams横梁的耐火测试

determination of the fire resistance of columns圆柱的耐火测试

determination of the fire resistance of floors and flat roofs地面材料及天花板的耐火测试

determination of the fire resistance of walls墙体的耐火测试

折叠测试方法

样品暴露下高温高压条件下，看测试样品在规定时间内的承重量，完整性、隔热性。bs476-21的测试时间可以为30分钟，60分钟，90分钟，120分钟，150钟，180分钟等，具体时间根据客户要求及产品性能而定，一般90分钟。

折叠参考标准

bs6853:1999 code of practice for precautions in the design and construction of passenger carrying trains.bs6853:1999英国载客列车设计与构造防火通规范

bs476-6:1989+a1:2009 method of test for propagation for materials

bs476-6:1989 +a1:2009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

bs 476-20:1987 method for determination of the fire resistance of elements of construction (general principles)

bs 476-20:1987建筑构件耐火的测定方法(一般原理)

bs 476-21:1987 methods for determination of the fire resistance of loadbearing elements of construction

bs 476-21:1987承重构件耐火的测定方法

bs 476-22:1987 methods for determination of the fire resistance of non-loadbearing elements of construction

bs 476-22:1987非承重建筑构件耐火性能测试方法

标准简介：

1.耐火极限

2.耐火稳定性

3.耐火完整性

4.耐火隔热性

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