These fire tests are applicable to assemblies of masonry units and to composite assemblies of structural materials for buildings, including bearing and other walls and partitions, columns, girders, beams, slabs, and composite slab and beam assemblies for floors and roofs. They are also applicable to other assemblies and structural units that constitute permanent integral parts of a finished building. 1.2 The classifications for building construction and materials are intended to register performance during the period of fire exposure and are not intended to be interpreted as having determined their acceptability for use after fire exposure.
UL 263-2003由美国保险商实验所 US-UL 发布于 2003-04-04。
UL 263-2003 在中国标准分类中归属于: P16 工程防火,在国际标准分类中归属于: 13.220.50 建筑材料和构件的阻燃性。
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