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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; 德文版本EN 1793-6-2018
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions; German version EN 1793-6:2018
参考页数:50P.;A4
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道路交通降噪设备.非声学性能.机械性能和稳定性要求
Road traffic noise reducing devices. Non-acoustic performance. Mechanical performance and stability requirements
参考页数:30P.;A4
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道路交通噪声降低装置.非声学性能.第1部分:机械性能和稳定性要求;德文版本EN 1794-1-2018
Road traffic noise reducing devices - Non-acoustic performance - Part 1: Mechanical performance and stability requirements; German version EN 1794-1:2018
参考页数:31P.;A4
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道路交通噪声降低装置.非声学性能.第1部分:机械性能和稳定性要求;德文版本EN 1794-1-2018
Road traffic noise reducing devices - Non-acoustic performance - Part 1: Mechanical performance and stability requirements; German version EN 1794-1:2018
参考页数:31P.;A4
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道路安全隔栏.BN4钢制安全栅栏.成分、功能和安装要求
Road safety barriers - Steel BN4 safety barriers - Composition, operation and mounting requirments
参考页数:50P.;A4
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道路安全屏障. 用障碍物推进试验测定土壤刚度. 试验方法
Road safety barrier - Determination of the soil stiffness with push test on barrier post - Test method
参考页数:9P.;A4
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道路安全隔栏.BHO钢制安全栅栏.成分、功能与构成部分
Road safety barriers - Steel BHO safety barriers - Composition, operation and constituent parts
参考页数:29P.;A4
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通信管道静摩擦系数标准器
Static Friction Coefficient Standard of Communication Conduct
参考页数:10P.;A4
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逆反射标准器
Retroreflective Standard
参考页数:10P.;A4
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道路交通减噪设备. 测定声学性能的试验方法. 内在特性. 声衍射现场数值
Road traffic noise reducing devices. Test method for determining the acoustic performance. Intrinsic characteristics In situ values of sound diffraction
参考页数:38P.;A4
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