Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5: Intrinsic characteristics - In situ values of sound reflection and airborne sound insulation
This Part of EN 1793 specifies the test method for determining the sound absorption and airborne sound insulation. It covers assessment of the performance of barriers which can reasonably be assembled inside the testing facility.
Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
Shqip