EN 1793-4-2015 发布历史

This European Standard describes a test method for determining the intrinsic characteristics of sound diffraction of added devices installed on the top of traffic noise reducing devices. The test method prescribes measurements of the sound pressure level at several reference points near the top edge of a noise reducing device with and without the added device installed on its top. The effectiveness of the added device is calculated as the difference between the measured values with and without the added devices, correcting for any change in height (the method described gives the acoustic benefit over a simple barrier of the same height; however, in practice the added device can raise the height and this could provide additional screening depending on the source and receiver positions). The test method is intended for the following applications: preliminary qualification, outdoors or indoors, of added devices to be installed on noise reducing devices; determination of sound diffraction index difference of added devices in actual use; comparison of design specifications with actual performance data after the completion of the construction work; verification of the long term performance of added devices (with a repeated application of the method); interactive design process of new products, including the formulation of installation manuals. The test method can be applied both in situ and on samples purposely built to be tested using the method described here. Results are expressed as a function of frequency, in one-third octave bands between 100 Hz and 5 kHz. If it is not possible to get valid measurements results over the whole frequency range indicated, the results shall be given in the restricted frequency range and the reasons of the restriction(s) shall be clearly reported. A single- number rating is calculated from frequency data.

EN 1793-4-2015由欧洲标准化委员会 IX-CEN 发布于 2015-03。

EN 1793-4-2015在国际标准分类中归属于: 17.140.30 运输工具的噪声,93.080.30 道路设备和装置。

EN 1793-4-2015 发布之时，引用了标准

EN 1793-1-2012 道路交通噪声减少设备,测试方法确定声学性能-第1部分:吸声的内在特征*， 2022-07-30 更新
EN 1793-3-1997 道路交通噪声减低装置.声学性能测定的试验方法.第3部分:标准化交通噪声频谱
CEN/TS 1793-5-2003 道路交通降噪设备.声学性能测定的试验方法.第5部分:固有的特征.声音反射和空气载声隔绝的原地测定值
EN 1793-6-2012 道路交通噪声降低装置.声学性能测定的试验方法.第6部分:固有特性.直达声场条件下空气隔音的现场测定值*， 2022-07-30 更新
EN 61672-1-2013 *， 2022-07-30 更新
EN ISO 354-2003 声学.混响室中声吸收的测量 ISO 354-2003
IEC 60942-2003 电声学.音响校准器
IEC 61260-1995 电声学分倍频程和频程频带滤波器
ISO/IEC Guide 98-1-2009 测量不确定度.第1部分: 测量中不确定度的表示介绍*， 2022-07-30 更新
ISO/IEC Guide 98-3-2008 测量的不确定性.第3部分:测量不确定性的表达指南(GUM-1995)
ISO/IEC Guide 98-3 Supplement 1-2008 测量的不确定性.第3部分:测量不确定性的表达指南(GUM-1995).补充件1:用蒙特卡洛法配给物的传播
ISO/IEC Guide 98-4-2012 测量的不确定性. 第4部分: 合格评定中不确定性的测量作用
ISO 13472-1-2002 声学.施工现场路面对噪声吸收性能的测量.第1部分:扩大表面法

* 在 EN 1793-4-2015 发布之后有更新，请注意新发布标准的变化。

EN 1793-4-2015的历代版本如下：

2015年03月 EN 1793-4-2015 道路交通降噪装置.测定声学性能的试验方法.第4部分：固有特性-声衍射的原位值

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标准号: EN 1793-4-2015
发布日期: 2015年03月
实施日期
废止日期: 无
国际标准分类号: 17.140.30;93.080.30
发布单位: IX-CEN
引用标准: EN 1793-1-2012 EN 1793-3-1997 CEN/TS 1793-5-2003 EN 1793-6-2012 EN 61672-1-2013 EN ISO 354-2003 IEC 60942-2003 IEC 61260-1995 ISO/IEC Guide 98-1-2009 ISO/IEC Guide 98-3-2008 ISO/IEC Guide 98-3 Supplement 1-2008 ISO/IEC Guide 98-3 Supplement 1 Technical Co
被代替标准: CEN/TS 1793-4-2003 FprEN 1793-4-2014

适用范围: This European Standard describes a test method for determining the intrinsic characteristics of sound diffraction of added devices installed on the top of traffic noise reducing devices. The test method prescribes measurements of the sound pressure level at several reference points near the top edge of a noise reducing device with and without the added device installed on its top. The effectiveness of the added device is calculated as the difference between the measured values with and without the added devices, correcting for any change in height (the method described gives the acoustic benefit over a simple barrier of the same height; however, in practice the added device can raise the height and this could provide additional screening depending on the source and receiver positions). The test method is intended for the following applications: preliminary qualification, outdoors or indoors, of added devices to be installed on noise reducing devices; determination of sound diffraction index difference of added devices in actual use; comparison of design specifications with actual performance data after the completion of the construction work; verification of the long term performance of added devices (with a repeated application of the method); interactive design process of new products, including the formulation of installation manuals. The test method can be applied both in situ and on samples purposely built to be tested using the method described here. Results are expressed as a function of frequency, in one-third octave bands between 100 Hz and 5 kHz. If it is not possible to get valid measurements results over the whole frequency range indicated, the results shall be given in the restricted frequency range and the reasons of the restriction(s) shall be clearly reported. A single- number rating is calculated from frequency data.

EN 1793-4-2015

Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 4: Intrinsic characteristics - In situ values of sound diffraction