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ČSN is a protected designation of Czech national technical standards.
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 3: Normalized traffic noise spectrum
Standard published on 1.5.2026
Selected format:Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 4: Intrinsic characteristics - Intrinsic sound diffraction
Standard published on 1.5.2026
Selected format:Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5: Intrinsic characteristics - Sound absorption under direct sound field conditions
Standard published on 1.5.2026
Selected format:Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - Airborne sound insulation under direct sound field conditions
Standard published on 1.5.2026
Selected format:Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 1: Intrinsic characteristics of sound absorption under diffuse sound field conditions
WITHDRAWN published on 1.10.2017
Selected format:Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 1: Intrinsic characteristics of sound absorption under diffuse sound field conditions
WITHDRAWN published on 1.12.2017
Selected format:Road traffic noise reducing devices -Test method for determining the acoustic performance - Part 1: Intrinsic characteristics of sound absorption
WITHDRAWN published on 1.7.2013
Selected format:Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 1: Intrinsic characteristics of sound absorption
WITHDRAWN published on 1.9.1998
Selected format: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
WITHDRAWN published on 1.1.2019
Selected format: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
WITHDRAWN published on 1.7.2013
Selected format:Latest update: 2026-06-15 (Number of items: 2 282 497)
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