BS 476-20：建筑材料和构件的防火测试.第20部分:建筑构件耐火的测试方法(一般原理)
日期:2011-02-16 21:57
eans of quantifying the ability of elements to withstand exposure to high temperatures, by setting criteria by which the load-bearing capacity, the fire containment (integrity) and the thermal transmittance (insulation) functions can be adjudged.
A representative sample of the element is exposed to a specified regime of heating and the performance of the test sample is monitored on the basis of criteria described in the standard. Fire resistance of the test element is expressed as the time fo
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