NT FIRE 006: Fire classification of construction products and building elements - Part 5 Classification using data from external fire exposure to roofs tests
NT FIRE 006: 建筑制品或建筑构件的防火分级，暴露于外部火的屋面试验分级要求。
此标准与DD ENV1187标准与BS476-3标准、EN13501-5防火测试比较类似
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