CEN/TS 1793-4:2003被替代
Road Traffic Noise Reducing Devices - Test Method For Determining The Acoustic Performance - Part 4: Intrinsic Characteristics - In Situ Values Of Sound Diffraction
出版：Comite Europeen de Normalisation
专家解读视频
Describes a test method for determining the intrinsic characteristics of sound diffraction of added devices installed on the top of traffic noise reducing devices.
To be read in conjunction with EN 1793-1, EN 1793-2, EN 1793-3 and EN TS 1793-5. (05/2004)
NBN CEN/TS 1793-4:2004 - Identical
ONORM CEN/TS 1793-4:2004 - Identical
DS CEN/TS 1793-4:2004 - Identical
SN CEN/TS 1793-4:2004 - Identical
DIN CEN/TS 1793-4 (2004-03) - Identical
I.S. EN CEN TS 1793-4:2004 - Identical
UNI CEN/TS 1793-4:2004 - Identical
NEN NPR CEN/TS 1793-4:2004 - Identical
