ISO 717-2:2013 声学 建筑和建筑构件的隔声标定 第2部分：撞击声隔声
标准编号：ISO 717-2:2013
中文名称：声学 建筑和建筑构件的隔声标定 第2部分：撞击声隔声
英文名称：Acoustics — Rating of sound insulation in buildings and of building elements — Part 2: Impact sound insulation
发布日期：2013-03
标准范围
ISO 717-2:2013:a）定义了建筑物和地板中冲击声隔声的单一数量；b） 给出了根据ISO 10140-3和ISO 140-7在三分之一倍频程带内进行的测量结果，以及根据ISO 140-7中的选项仅用于现场测量的倍频程带内进行的测量结果来确定这些量的规则；c） 定义根据ISO 10140-3进行的测量结果计算的地板覆盖物和浮动地板的冲击声降低的单个数字量；d） 指定一个程序，用于评估轻质地板上地板覆盖物对冲击声压级的加权降低。符合ISO 717-2:2013的单数数量旨在对冲击隔音进行评级，并简化建筑规范中声学要求的制定。对于不确定度的表示（频谱适应项除外），还需以0.1 dB的步长进行额外的单数值评估。根据不同的需求，指定了单个数字量的所需数值。附录中描述了在扩大的频率范围内进行的测量结果的评级。第二个附录中描述了根据裸露重型地板与地板覆盖物结合的性能获得其单数量的方法。第三个附录中给出了单个数字数量的计算示例。
ISO 717-2:2013: a) defines single-number quantities for impact sound insulation in buildings and of floors; b) gives rules for determining these quantities from the results of measurements carried out in one-third-octave bands in accordance with ISO 10140-3 and ISO 140-7, and in octave bands in accord-ance with that option in ISO 140-7 for field measurements only; c) defines single-number quantities for the impact sound reduction of floor coverings and floating floors calculated from the results of measurements carried out in accordance with ISO 10140-3; d) specifies a procedure for evaluating the weighted reduction in impact sound pressure level by floor coverings on lightweight floors.The single-number quantities in accordance with ISO 717-2:2013 are intended for rating impact sound insulation and for simplifying the formulation of acoustical requirements in building codes. An additional single-number evaluation in steps of 0,1 dB is indicated for the expression of uncertainty (except for spectrum adaptation terms).The required numerical values of the single-number quantities are specified according to varying needs.The rating of results from measurements carried out over an enlarged frequency range is described in an annex.A method for obtaining single-number quantities for bare heavy floors according to their performance in combination with floor coverings is described in a second annex.An example of the calculation of a single-number quantity is given in a third annex.
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