NS EN 14389-1 Ed. 1 (2007)现行
Road Traffic Noise Reducing Devices - Procedures For Assessing Long Term Performance - Part 1: Acoustical Characteristics
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Specifies the means for evaluating the acoustic durability of Road Traffic Noise Reducing Devices.
UNI EN 14389-1:2015 - Identical
NEN EN 14389-1:2015 - Identical
ONORM EN 14389-1:2015 - Identical
SS EN 14389-1 Ed. 2 (2015) - Identical
NBN EN 14389-1:2015 - Identical
NEN EN 14389-1:2007 - Identical
SS EN 14389-1 Ed. 1 (2007) - Identical
UNI EN 14389-1:2008 - Identical
ONORM EN 14389-1:2008 - Identical
NBN EN 14389-1:2008 - Identical
DIN EN 14389-1 (2008-02) - Identical
I.S. EN 14389-1:2007 - Identical
BS EN 14389-1:2007 - Identical
