标准摘要
[中文适用范围]: 总则 ISO 15186 的本部分规定了一种声强方法,用于确定等候室、地板、门、窗和小型建筑构件的原位隔音效果。 它适用于必须在存在侧向传输的情况下进行的测量。 它可用于为侧翼传输的诊断分析人员提供声功率数据或测量侧翼隔声参数。 ISO 15186 的这一部分可供无法满足 ISO 15186-1 要求的实验室使用,ISO 15186-1 涉及没有或很少有侧向透射的实验室测量。 ISO 15186-3 涉及实验室条件下的低频测量。 ISO 15186 的这一部分还描述了侧向透射对使用指定方法进行的测量的影响,以及如何使用强度测量 - 将建筑构件的现场隔音效果与侧向已被抑制的实验室测量进行比较(即ISO 140-3), — 对建筑元素的部分贡献进行排名,以及 — 测量一条或多条传输路径的侧向降噪指数(用于验证预测模型,例如 EN 12354-1 中给出的预测模型)。 该方法给出了空气隔声值,该值与频率相关。 通过应用 ISO 717-1,它们可以转换为单个数字,表征声学性能。 2 精度 当分别测量单个小型和大型建筑构件时,该强度方法的再现性估计等于或优于 ISO 140-10 和 ISO 140-4 的方法。 注1:如果要将使用该方法进行的降噪措施与ISO 140各部分中使用传统混响室方法进行的降噪措施进行比较,则有必要引入反映测试方法之间偏差的适应术语。 该术语在附录 A 中给出。 注 2 附录 B 中给出了有关 ISO 15186 本部分的精度及其与根据 ISO 140-3 和 ISO 140-4 测量的隔音指数的关系的一些信息。 注 3 侧翼传输在附录 C 中讨论。 [外文原描述]: ISO 15186-2:2003 specifies a sound intensity method to determine the in-situ sound insulation of walls, floors, doors, windows and small building elements. It is intended for measurements that have to be made in the presence of flanking transmission. It can be used to provide sound power data for diagnostic analysis of flanking transmission or to measure flanking sound insulation parameters. ISO 15186-2:2003 can be used by laboratories that could not satisfy the requirements of ISO 15186-1, which deals with laboratory measurements with no or little flanking transmission. ISO 15186-3 deals with measurements under laboratory conditions, at low frequencies. ISO 15186-2:2003 also describes the effect of flanking transmission on measurements made using the specified method, and how intensity measurements can be used -- to compare the in-situ sound insulation of a building element with laboratory measurements where flanking has been suppressed (i.e. ISO 140-3), -- to rank the partial contributions for building elements, and -- to measure the flanking sound reduction index for one or more transmission paths (for validation of prediction models such as those given in EN 12354-1). This method gives values for airborne sound insulation, which are frequency dependent. They can be converted into a single number, characterizing the acoustic performance, by application of ISO 717-1. The reproducibility of this intensity method is estimated to be equal to or better than that of the methods of ISO 140-10 and ISO 140-4, when measuring a single small and large building element, respectively.
英文名称Acoustics — Measurement of sound insulation in buildings and of building elements using sound intensity — Part 2: Field measurements