NEN EN 1793-1:1997被替代
Road Traffic Noise Reducing Devices - Test Method For Determining The Acoustic Performance - Part 1: Intrinsic Characteristics Of Sound Absorption
出版：Nederlands Normalisatie Instituut
专家解读视频
Defines the laboratory procedure for measurement of sound absorption of flat noise barriers or flat cladding for retaining walls or tunnels. Describes the assessing of intrinsic sound absorption performance of roadside noise reducing devices which can be assembled inside the testing facility covered in EN 20354.
ONORM EN 1793-1:1998 - Identical
DIN EN 1793-1 (1997-11) - Identical
BS EN 1793-1:1998 - Identical
SN EN 1793-1:1998 - Identical
UNE EN 1793-1:1998 - Identical
UNI EN 1793-1:1999 - Identical
SS EN 1793-1 Ed. 1 (1997) - Identical
NS EN 1793-1 Ed. 1 (1998) - Identical
I.S. EN 1793-1:1998 - Identical
NF EN 1793-1:1997 - Identical
NBN EN 1793-1:1997 - Identical
SS EN 1793-1 Ed. 2 (2012) - Identical
