?NORM EN 1793-2:2018現行
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field conditions
出版：Osterreichisches Normungsinstitut/Austrian Standards
專家解讀視頻
This document specifies the laboratory method for measuring the airborne sound insulation performance of road traffic noise reducing devices in reverberant conditions.
EN 1793-2 : 2012 - Identical
EN 1793-2:2018 - Identical
EN 1793-2 : 2012 - Identical
EN 1793-2:2018 - Identical
