声学. 建筑和建筑构件的隔声标定. 第1部分: 空气声隔声

[中文适用范围]： 本文件 a) 定义了建筑物和墙壁、地板、门和窗等建筑构件的空气隔声量的单数量，c) 给出了根据以三分之一倍频程或三分之一倍频程进行的测量结果确定这些量的规则。 例如根据 ISO 10140-2 和 ISO 16283-1 的倍频程。 b) 考虑各种噪声源的不同声级谱，例如建筑物内的噪声源和建筑物外的交通声源，并且 根据本文件的单数量旨在评估空气传播的隔音效果并简化公式建筑规范中的声学要求。 以 0.1 dB 为步长的附加单数评估表示不确定性的表达（频谱适应项除外）。 根据不同的需要指定所需的单数数量的数值。 单数量基于三分之一倍频程或倍频程的测量结果。 对于根据 ISO 10140-2 进行的实验室测量，仅使用三分之一倍频程计算单个数量。 在扩大的频率范围内进行的测量结果的评级在附录 B 中讨论。 [外文原描述]： This document a) defines single-number quantities for airborne sound insulation in buildings and of building elements such as walls, floors, doors, and windows, b) takes into consideration the different sound level spectra of various noise sources such as noise sources inside a building and traffic outside a building, and c) gives rules for determining these quantities from the results of measurements carried out in one-third-octave or octave bands for example in accordance with ISO 10140-2 and ISO 16283-1. The single-number quantities in accordance with this document are intended for rating airborne 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 single-number quantities are based on results of measurements in one-third-octave bands or octave bands. For laboratory measurements made in accordance with ISO 10140-2, single-number quantities are calculated using one-third-octave bands only. The rating of results of measurements carried out over an enlarged frequency range is dealt with in Annex B.